X^2-8X+16=X-4

Simple and best practice solution for X^2-8X+16=X-4 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^2-8X+16=X-4 equation:


Simplifying
X2 + -8X + 16 = X + -4

Reorder the terms:
16 + -8X + X2 = X + -4

Reorder the terms:
16 + -8X + X2 = -4 + X

Solving
16 + -8X + X2 = -4 + X

Solving for variable 'X'.

Reorder the terms:
16 + 4 + -8X + -1X + X2 = -4 + X + 4 + -1X

Combine like terms: 16 + 4 = 20
20 + -8X + -1X + X2 = -4 + X + 4 + -1X

Combine like terms: -8X + -1X = -9X
20 + -9X + X2 = -4 + X + 4 + -1X

Reorder the terms:
20 + -9X + X2 = -4 + 4 + X + -1X

Combine like terms: -4 + 4 = 0
20 + -9X + X2 = 0 + X + -1X
20 + -9X + X2 = X + -1X

Combine like terms: X + -1X = 0
20 + -9X + X2 = 0

Factor a trinomial.
(4 + -1X)(5 + -1X) = 0

Subproblem 1

Set the factor '(4 + -1X)' equal to zero and attempt to solve: Simplifying 4 + -1X = 0 Solving 4 + -1X = 0 Move all terms containing X to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1X = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1X = 0 + -4 -1X = 0 + -4 Combine like terms: 0 + -4 = -4 -1X = -4 Divide each side by '-1'. X = 4 Simplifying X = 4

Subproblem 2

Set the factor '(5 + -1X)' equal to zero and attempt to solve: Simplifying 5 + -1X = 0 Solving 5 + -1X = 0 Move all terms containing X to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1X = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1X = 0 + -5 -1X = 0 + -5 Combine like terms: 0 + -5 = -5 -1X = -5 Divide each side by '-1'. X = 5 Simplifying X = 5

Solution

X = {4, 5}

See similar equations:

| x+8=3(2-x) | | X^2-6X+9=X^2-9 | | 9+16=x^2 | | -6X+18=0 | | 3(a-5)=6a | | 5x+17=8x-4 | | 3(b+1)=15 | | 2a+3=7 | | 4x+15=x-20 | | 5m-7=28 | | X=35+4x | | X-20=4x+15 | | 14y-19y= | | -5-8b-9-8b= | | 3.2x+1.8x= | | 7y-x=14 | | 15y-2x= | | 152=3x+2+2x | | x^2=10x+10 | | y=2x^2-16x+33 | | x^3-10x^2-x+82=0 | | x^2=14x+10 | | (19-21+16)= | | 9x-28=4+x | | 3v(11v+8)=0 | | 4g=2 | | 2t+8=2 | | 4.35=2.25+.30(x-3) | | 8x^2+1=5x | | log(x+1)+logx=log(x+9) | | x^2+10x+50=0 | | 2m^3-10m^2+18m= |

Equations solver categories