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Пікірлер: 47
@GaryBricaultLive4 ай бұрын
By inspection I can see that the numerator and denominator are essentially symmetrical. And the obvious answer being X = 0.
@is77284 ай бұрын
Yes I noticed that too
@junkmail46134 ай бұрын
I concur
@jim23764 ай бұрын
Exactamundo.👍👍
@user-kz3tn5sr6t3 ай бұрын
@@junkmail4613йффффффффффффффффффффффйф
@prabhudasmandal64294 ай бұрын
When we get x^2+71=0 or x^2=--71 ,we can easily say that it is not valid for real value .
@pb28064 ай бұрын
Interesting, so the key is to notice that 7+10=17 and 8+9=17, so that we can regroup the terms and obtain similar developments in the form of x^2+17x+constant. Thanks
@user-pd7js7cy9m4 ай бұрын
If 0
@Nepomenik4 ай бұрын
Exactly! With added x>0 and not equal to 7, 8 ,9 or 10, this is the most elegant proof.
@scpforjee3 ай бұрын
5:51 Could have added 1 on both sides, then completed the square. So (a+1)²=(b+1)². Then take square root on both sides. So a+1=±(b+1) and then proceed.
@professorsargeanthikesclim92933 ай бұрын
Excellent.
@antonellocossu43193 ай бұрын
By looking at the four factors composing the denominator, the solutions can't be 7, 8, 9 and 10. Furthermore, provided there are four factors at the denominator (an even number), and showing the same constants of the factors in the upper side of the fraction, with just their signs changed, it can be deduced that one solution in R is 0, like many comments correctly say below. From observing the equation there's another consequence: the shape of the resulting equation will be x^4+ax^3+bx^2+cx+d = x^4-ax^3+bx^2-cx+d where a, b, c, d >0 and the x terms power 0, 2, and 4 are the same on both sides of the equation. Hence, they will cancel each other, and the resulting equation will have the form ax^3+cx=0 where both a and c will be >0. Therefore, the resulting equation will have the form x(x^2+A)=0 (A=a/c) where A>0, which means that there's one only solution in R: x=0.
@benjaminconcepcion21023 ай бұрын
By inspection x=0
@vladsmith36574 ай бұрын
Easy, X=0. 👍
@habeebalbarghothy63204 ай бұрын
Very clear ! x=0
@prime4232 ай бұрын
Gary has it right!!Analyze first!!!!!!!
@keinKlarname4 ай бұрын
x^2 +71 = 0 discriminant to see there are no real solutions?
@samuelbenet0074 ай бұрын
À cette équation, tu vois tout de suite que S={∅} ^^
@ToanPham-wr7xe4 ай бұрын
😮
@jim23764 ай бұрын
By inspection x = 0 works. (56 x 90)/(56 x 90) = 1. We're positive upstair and downstairs.
@benjaminconcepcion21023 ай бұрын
Solvable by the fastest way😭
@herbertklumpp29693 ай бұрын
Nothi g to calculate.x=0 is a solution because 7*8*9*10= (-7)*(-8)*(-9)*(-10) For x real x+7 ,> x-7 and Rhein same for the other ( ) therefore nominator is greaterthan denominator conclude nominator/denom. Is 1 für Real x
@olegkalsin50204 ай бұрын
Доказать ответ, который лежит на поверхности...
@anjukhandu4 ай бұрын
I got answer in 1minute by putting value of x ....
@MathSync3 ай бұрын
I ❤ Mathematics
@learncommunolizer3 ай бұрын
Thank you very much!
@user-bk1wl9ez1c4 ай бұрын
Factorial
@chittaranjanmahanta522424 күн бұрын
If a/b=1 Then a+1/b+1=1 How it possible?
@comdo7774 ай бұрын
asnwer=1x
@mauriziocotti97813 ай бұрын
Very good
@learncommunolizer3 ай бұрын
Thank you very much!!
@peterkrauliz54003 ай бұрын
There is a second solution if we accept x to be infinitely large.
@user-jl9bs3ip5m3 ай бұрын
Уважаемые, скажите кому и для каких целей нужны такие уравнения? В школе так вообще замучаешься решать, один пример за урок, на большее времен не хватит.
@user-ye6go4ft7q3 ай бұрын
Зачем так длинно решать ??? (a+1)(a+2)/-{(a+1)}{-(a+2)}=1 при чёрном или -1 при печатном умножителей ???