x(x-1)=x*x+20

Simple and best practice solution for x(x-1)=x*x+20 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(x-1)=x*x+20 equation:


Simplifying
x(x + -1) = x * x + 20

Reorder the terms:
x(-1 + x) = x * x + 20
(-1 * x + x * x) = x * x + 20
(-1x + x2) = x * x + 20

Multiply x * x
-1x + x2 = x2 + 20

Reorder the terms:
-1x + x2 = 20 + x2

Add '-1x2' to each side of the equation.
-1x + x2 + -1x2 = 20 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-1x + 0 = 20 + x2 + -1x2
-1x = 20 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-1x = 20 + 0
-1x = 20

Solving
-1x = 20

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Divide each side by '-1'.
x = -20

Simplifying
x = -20

See similar equations:

| x*x-12=4x | | 2(2x+9)=5x+72 | | X*x-2x=8 | | x+6x=0 | | 8(3b+2)=28 | | 45d=-9 | | 3x*3x+11x-4=0 | | -3=-14-3x | | 5b-10=14-2b | | 6x*6x+17x-3=0 | | 4(3x+1)=-2(5x+2) | | 2S^3+3S^2+3S+5=0 | | 9+3(5-b)=7(2-b) | | d(3-u)= | | -1200+x=345 | | x+18=2x-4 | | x+18=2-4 | | 81x^2-118x+36=0 | | 4x*4x-19x+12=0 | | 3x+4y=16 | | -x-47+8x=100 | | 6x*6x+37x+6x=0 | | x(x+8)=x^2+6x+9 | | 20x-10=6y | | 4*x^2+x=2 | | 7-2(4-3p)=5p+4 | | 3x^4+2x+4=0 | | 6n=9n-54 | | x^4-10x^3+35x^2-50x+24=0 | | r^2+4x-5=0 | | r*(r^2+3r)+2=0 | | 3x-89+6x=163 |

Equations solver categories