How to Solve Quadratic Equations on Casio fx-991ES Scientific Calculator (4 Tricks!)

[@klong4128]

fx 991 plus can solve quadratic/cubit equations very fast and directly by 'calc' or 'solv' many other methods .Yet many users never demo it. Many users just show how to use simple formula to solve it with advanced Scientific Calculator .You demo all. Good job done. When I use computer Excel .I found that Excel 2015 or later version is able to handle complex number .Thus I just write Excel formulae interlink each Cells.I just choose any 3 empty cells for input-number for quadratic .4 empty cells for input-number for cubit. When I complete inputs ,the answer immediately comeout in another output/number cell within a microseconds. Thus any super advanced Scientific Calculator that can write Program or doing Spreadsheet surely can replace the Scientific Calculator ! such as fx 991 ex or fx cg50 ! So far , I never see any Experts demo .They just demo formula usage that any NON-Scientific Calculator can do it to get numbers answers !

[@sujoy70]

1000+ views but only 15 likes/shares? That is below 2%. Come on guys, if you like any of my videos,I'd request you to please like & share it. Because sharing is caring :-)

[@sheenamarieibabao6253]

+Sujoy Krishna Das thank you sir!

[@abdelmoniemkhider94]

thnx dude tdy I have a additional test and u helped me alot thnx

[@maricelpondoyo1792]

I understood well.It help a lot especially now that I reviewed for my LET board Exam

[@theodoresweger4948]

Very good and appreciate the check by using the answer

[@vibhore9624]

There is Equation mode in this caluclator we can solve it there instead of these lengthy process... Press Mode Then 5 for Eq. mode Then 3 for the equation u r solving Then put the values and = SOLUTION.😁

[@fouzantariq7113]

Thnks... Saved my nine minutes

[@ejariza9839]

@@fouzantariq7113 thank you ♥️ you saved me from 9mins vid hahah

[@VIMALANSBAI]

Then how to quit from it??

[@nomi52x]

you are amazing!! easy and very helpful.

[@AshleiighTayla]

Is there a way that you can do this on the calculator when the coefficients of the polynomial are complex?

[@MyWatchP1]

I no you can use the calculator to fine LCM of a given numbers. Now how can I find the Common factors of x2-5x-6=0 to solve as a theory question? Thank u

[@nitammall2640]

How to solve herones formula to find area of triangle

[@rafiquegazi6139]

wow..i learn a good trick..thanks for your video

[@kamrulhaque2775]

its great job for student. actualy i was in need of such video.

[@sujoy70]

+Kamrul Haque It's my pleasure! Comments from viewers like you really motivates me! Watch my other videos here- goo.gl/uiTDQS and give your valuable comments. Subscribe to my KZbin channel so that when I upload a new video,you get notified. If you like any of my videos,I'd request you to please like & share it. Because sharing is caring :-)

[@rodrigoguzman8907]

thank you so much, greetings from mexico :D

[@sundaresanesan5787]

Sir It is Excellent explanation .please kindly include Muller,Chebyshev Bierge vieta,Bairstow , Graeffe,Cholesky numerical methods and also Romberg integration early since I have exam in the coming December.thank you very much for your interest in numerical statistics

[@sujoy70]

I didn't have those methods in my Undergraduate. What course you're studying? Tell me book's name which have all these methods covered.

[@powerliftingteen8129]

Thanks, helped me a lot!

[@gbengao.michaeloyinloye335]

I wish one click of mine can give you a million likes. You gave me reasons not to dump this calc in the waste bin. Bravo !

[@sujoy70]

+MIKE MICHAEL It's my pleasure! Comments from viewers like you really motivates me! Watch my other videos here- goo.gl/uiTDQS and give your valuable comments.Subscribe to my KZbin channel so that when I upload a new video,you get notified. If you like any of my videos,I'd request you to please like & share it. Because sharing is caring :-)

[@thanaponvachiraprapun3108]

Thank you for your video^^

[@221hamada]

How can i solve 4x^2-29x+27 ( Factorize ) using fx9911 es plus or es >> ?

[@sujoy70]

+Ahmed hamada You can find value of X, but can't factorize (find individual factors) on this calc. Watch my other videos here- goo.gl/uiTDQS and give your valuable comments. Subscribe to my KZbin channel so that when I upload a new video,you get notified. If you like any of my videos,I'd request you to please like & share it. Because sharing is caring :-)

[@221hamada]

Thanks :))

[@pinaryilmazer300]

hey sujoy could you pls explain wheter we could convert the roots (such as 0.73) as a complex number. I would like to get my results whether real number or complex number. 0.73 would not help me. ASAP thanks a lot

[@rosemonicajoy9579]

Thank you... Liked... Stay connected

[@mohammedshahid4535]

video is cool but I need some more features of this same calculator..... thank you

[@sujoy70]

For that you can checkout all my calculator videos here- My Casio Scientific Calculator Tutorials- goo.gl/uiTDQS

[@rosseacevedo2990]

Great! thanks!

[@themelancholicguy139]

Thank you bro❤🇧🇩

[@ssunus1]

thank you, come again

[@sujoy70]

Antanas Gedminas It's my pleasure! Comments from viewers like you really motivates me! Watch my other videos here- goo.gl/uiTDQS and give your valuable comments. Subscribe to my KZbin channel so that when I upload a new video,you get notified. If you like any of my videos,I'd request you to please like & share it. Because sharing is caring :-)

[@miramardream]

I love that, “Because sharing is caring.”

[@misty_doi11]

It was very helpful. :)

[@sujoy70]

Thanks! Subscribe to my KZbin channel so that when I upload a new video, you get notified. If you like any of my videos, request you to please like & share it. Because sharing is caring :-)

[@salmanhadi8266]

Excellenttttt sir g

[@pagdokarbak4319]

Thank you 👍

[@LOVESHARMA098]

Great work

[@Mind_Mirror]

Thanks sir but please don't give info what u r gonna do it is clear by video's name directly do the main part.

[@jotsanameshram9859]

Thank you sir

[@avinashjangir8580]

Thank You...

[@sujoy70]

+Avinash Jangir It's my pleasure! Comments from viewers like you really motivates me! Watch my other videos here- goo.gl/uiTDQS and give your valuable comments. Subscribe to my KZbin channel so that when I upload a new video,you get notified. If you like any of my videos,I'd request you to please like & share it. Because sharing is caring :-)

[@shajankavungal1018]

Good video

[@djagoegei18]

Great video! Thank you!

[@sujoy70]

djagoegei18 It's my pleasure! Comments from viewers like you really motivates me! Watch my other videos here- goo.gl/uiTDQS and give your valuable comments. Subscribe to my KZbin channel so that when I upload a new video,you get notified. If you like any of my videos,I'd request you to please like & share it. Because sharing is caring :-)

[@muhammadmustafa3158]

nicely done :)

[@sujoy70]

+Muhammad Mustafa It's my pleasure! Comments from viewers like you really motivates me! Watch my other videos here- goo.gl/uiTDQS and give your valuable comments. Subscribe to my KZbin channel so that when I upload a new video,you get notified. If you like any of my videos,I'd request you to please like & share it. Because sharing is caring :-)

[@syedmaaez]

Amazing.!

[@sujoy70]

+Maaez Gillani It's my pleasure! Comments from viewers like you really motivates me! Watch my other videos here- goo.gl/uiTDQS and give your valuable comments. Subscribe to my KZbin channel so that when I upload a new video,you get notified. If you like any of my videos,I'd request you to please like & share it. Because sharing is caring :-)

[@nanda4131]

Hi bro am just a guy like you ...can u tell me how much can we make by KZbin videos like yours.....?????

[@sujoy70]

nanda kishore I can't give u exact ans,go google,u'll know.

[@nanda4131]

Thank for reply...

[@Akhileshkattimani597]

Super sir

[@samhoey8247]

I have marhs test tomorrow and my calculators so shitty i cant do the over sign

[@SK_SIR_621]

how to calculate equation 1.06*10^6D+(D-40)^4=D^4

[@sujoy70]

Sohail Shaikh Try it yourself. To know more,check my this video- kzbin.info/www/bejne/goC3o5qpmMuCd5o

[@pallavi2027]

Thank u

[@sujoy70]

+pallavi m n It's my pleasure! Comments from viewers like you really motivates me! Watch my other videos here- goo.gl/uiTDQS and give your valuable comments. Subscribe to my KZbin channel so that when I upload a new video,you get notified. If you like any of my videos,I'd request you to please like & share it. Because sharing is caring :-)

[@karthik4623]

How much bro this calculator

[@Sameer-zz7rv]

My answer comes with an angle...how to solve it?

[@josemanuelroa4620]

That happens when you put your Calculator in complex format. An angle of 180 means negative. For example 2 angle 180 means -2

[@rajatsinghpanwar9210]

Awewsome

[@oikxsu6448]

its negative not minus

[@kohyarshaikh]

very good

[@mohitparwal7124]

I welcomes you......LOL

[@miramardream]

ASMR math

[@lintonlinton2989]

❤❤

[@sandeeppatel-hi1mv]

What is L-R???

[@akashvaid2492]

Hutia ha tu

[@fariahamin6977]

Thank you 😊