Solving Quadratic Inequalities - The Basics

[@patrickjmt]

@MetallicSisters well, different people have different methods. just find that works for you and go with it!

[@patrickjmt]

@822437 put -2, 1 , 0 on a number line, test stuff in between.

[@patrickjmt]

@MrAddddyyy i try : )

[@danooii]

Thanks so much, I've never seen this stuff before but I now I need it for some calculus problems!

[@P0is0n85]

wow, I have watched several of your videos and they have really helped me understand precalc alot better than my teacher. Keep up the great work. God Bless You :)

[@KarriRosenbloom]

Thank you sooooo much for these videos! There's no way I could have passed College Algebra without you! :D

[@nghi1350]

The video lesson is great for students who learn the solving process for the first time. However, they don't need to repeat all solving steps each time. They only need to use a simple rule when solving by the number line and test point method. First, plot 2 real roots on the number line. They divide it into 1 segment and 2 rays. Always use O as test point. Substitute x = 0 into the inequality. If it is true, then the origin is located on the true segment (or true ray). Use intervals for answers

[@JawadKhan-gc6du]

You're not my Sir.... you're my BRO ...teachers teach but Bros like you make us Badass in maths...thanks a lot....lots of gratitude....

[@patrickjmt]

@petkol ahahah, is my picture on your wall? you should tape a big one on the front of your math book.

[@SensiStarToaster]

@patrickJMT Tables are confusing, why not do it purely algebraically?

[@barrowpurez]

dude your hand writing is awesome

[@thatsJim19]

thanks a lot..you are a life saver!! can you do pre-calculus and advanced funstions lessons!! thanks again!

[@samuelzathang915]

Your a better teacher than my Maths teacher!!!

[@ebmipa]

Yeah thanks man, this has been a great help!

[@mufakkirhussain2816]

} this bracket should be used for infinity. Tell me if i am wrong or right

[@WiskinWaffles]

where did the 3 come from?

[@patrickjmt]

@zx6rtt wow, now that is gratitude if i ever saw it : ) glad it helped!

[@MrMircs]

using your example, could one write: -3> x >-2 ? would appreciate the help :D

[@hanako2310]

how could you solve the inequality f(x) > 3

[@pWnographist]

I'm in the math side of youtube again...sweeeeet :)

[@LockemShoto]

Huh ... what if everything on the number line is possible? Like, I have 3 numbers that I tested out, and everything inbetween and to the left and right of the numbers are possible. Do I seperate them with OR statements or inbetween statements? Because apparently that's how much teacher wants them, and I'm a bit afraid =X

[@822437]

How do you solve this: x(x-1)(x+2)>0 ?

[@JasmineGHill]

please tell me the "factoring" part and the quadratic formula please!

[@PrincessSilvia]

Thanks so much! I get it now :-) You're an amazing teacher!

[@baohslokin]

Thank you, you saved me~!! it's easier to concentrate here~~

[@akankshatomar3664]

thankxxxxx a lot sir...it hlps me a lot

[@rosaliecullen21]

for the last problem what do you mean by anything from positive infinit to negative infinity will work? -4 doesn't work and isn't negative 4 included in your solution . since ur saying negative infinity ur saying -4 will work but it doesn't -4^2+4=-12

[@ipsitasarkar4084]

rosaliecullen21 square of any number gives positive integer so -4*2+4gives 18 not -12

[@ipsitasarkar4084]

sorry 20 not not18

[@Fernanferpes]

hey bro i need a little help lets say that i have x^2(square)+7x

[@viet017]

YOU ARE MY NEW TEACHER!!!!

[@ladiaden2951]

Amazing video! Thank you, I really understand now!

[@patrickjmt]

glad i could help!

[@reorosco]

Your the best! I wish you were my instructor!

[@БекаЗамирбеков-з8щ]

You saved my life! thank u

[@samx36]

glad i found this video, helpful

[@davidljunggren6213]

You are the GOAT.

[@alexib4028]

hi if theirs a - 5 on the 5x. the answe will be -2,3)

[@xSenioritis]

@rosaliecullen21 It's (-4)^2 and not -(4)^2

[@abster4eva]

What if instead of 0 it was y ??

[@rad3yes602]

You saved my life tho.! thanks PS:Yo still better than my math teacher \m/

[@youcyriacmathew]

why would you put -3 & -2 in the prentices - because it doesn't satisfy the first equation Shouldnt you put (-infinty , -4) U (-1 , infinity)

[@nevergobroke559]

one day i wish i could solve math like him omg

[@MrAddddyyy]

Not only are you a genius, but you're comments are hilarious. Like actually.

[@patrickjmt]

an older video!

[@abdkassem98]

Thank you very much teacher.... :D

[@HawreNLatif]

i dont belive he is doing these vids for free

[@EliteCitrus]

he is, he gets donations and recognition in return. unless you want to purchase his book(s) it's free.

[@AliasadKhan08]

you should use a white board instead of paper go green :)

[@patrickjmt]

No

[@tomwebb3016]

+patrickJMT woah man

[@LeadDistortion]

+patrickJMT he won't do that much (but he did before) because he's left handed and it's actually a struggle to use white boards instead of paper if you're a lefty because the marker's ink will stick to your hand (I'm also left handed so it sucks)

[@JS-gu7fw]

You sound like AsapScience! :D

[@alvinmath]

i still don;t understand.

[@markonochie1091]

thank you.

[@superj1e2z6]

thank you. Now I know!

[@ArjavPatelpatelarjav15]

thank u

[@WOWmagicmanWOW]

You say 10 in a funny way xD...no im sorry, thats very immature. Very helpful video :)

[@khanhnguyen-uw7rn]

thank

[@patrickjmt]

@Iwatchsexyvideos glad my video is sexy

[@patrickjmt]

@Iwatchsexyvideos old video

[@zx6rtt]

pat, you just SAVED MY LIFE If you EVER need a kidney, i'll gladly give you one of mine xD

[@hehehebunny615]

It works it work the like button works!!

[@achikaachika5274]

nice

[@milagropeters1788]

no he's my hero lolz

[@baohslokin]

agree :)

[@learnwithberryafaithfulser5565]

YEAR 2009 ... Ohhhh...

[@Retroz11]

lol why 2.5 ???

[@jakeclarin5436]

Paper waster

[@EliteCitrus]

life saver