(x-1)*(x+1)=x*x

Simple and best practice solution for (x-1)*(x+1)=x*x equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for (x-1)*(x+1)=x*x equation:


Simplifying
(x + -1)(x + 1) = x * x

Reorder the terms:
(-1 + x)(x + 1) = x * x

Reorder the terms:
(-1 + x)(1 + x) = x * x

Multiply (-1 + x) * (1 + x)
(-1(1 + x) + x(1 + x)) = x * x
((1 * -1 + x * -1) + x(1 + x)) = x * x
((-1 + -1x) + x(1 + x)) = x * x
(-1 + -1x + (1 * x + x * x)) = x * x
(-1 + -1x + (1x + x2)) = x * x

Combine like terms: -1x + 1x = 0
(-1 + 0 + x2) = x * x
(-1 + x2) = x * x

Multiply x * x
-1 + x2 = x2

Add '-1x2' to each side of the equation.
-1 + x2 + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-1 + 0 = x2 + -1x2
-1 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-1 = 0

Solving
-1 = 0

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

See similar equations:

| 2x^2(x+3)(x-3)=0 | | 2(x-1)+3=-3(x+1) | | 2.42x=136 | | -2(4n-7)=4 | | -0.8y-5=17 | | x+1=-2x+1 | | 34-6y+8x=20+4y-8x | | 3p-(-20)=50 | | x^2+4x-105= | | 5b-2=13 | | -5x+4y=12 | | 36=8x(4) | | 3x-5=2-x | | 2x+8x=10 | | -2(4n+7)=4 | | 0.7a+3.2=4a | | y+2(1)=-7 | | y+2(-7)=-7 | | y=3(1) | | y=3(0) | | y=3(-1) | | 2x^3-5x^2-21x+36=0 | | y=-5(1) | | y=-5(0) | | y=-5(-1) | | y=-7(3)+4 | | y=-7(1)+4 | | y=-7(-2)+4 | | 2x-6=20(x-0.2) | | 3y+18(1)=9 | | 3y+18(-2)=9 | | y=-3(1)+4 |

Equations solver categories