(x^2-2x+1)-(x-1)=8

Simple and best practice solution for (x^2-2x+1)-(x-1)=8 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^2-2x+1)-(x-1)=8 equation:


Simplifying
(x2 + -2x + 1) + -1(x + -1) = 8

Reorder the terms:
(1 + -2x + x2) + -1(x + -1) = 8

Remove parenthesis around (1 + -2x + x2)
1 + -2x + x2 + -1(x + -1) = 8

Reorder the terms:
1 + -2x + x2 + -1(-1 + x) = 8
1 + -2x + x2 + (-1 * -1 + x * -1) = 8
1 + -2x + x2 + (1 + -1x) = 8

Reorder the terms:
1 + 1 + -2x + -1x + x2 = 8

Combine like terms: 1 + 1 = 2
2 + -2x + -1x + x2 = 8

Combine like terms: -2x + -1x = -3x
2 + -3x + x2 = 8

Solving
2 + -3x + x2 = 8

Solving for variable 'x'.

Reorder the terms:
2 + -8 + -3x + x2 = 8 + -8

Combine like terms: 2 + -8 = -6
-6 + -3x + x2 = 8 + -8

Combine like terms: 8 + -8 = 0
-6 + -3x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + -3x + 6 + x2 = 0 + 6

Reorder the terms:
-6 + 6 + -3x + x2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -3x + x2 = 0 + 6
-3x + x2 = 0 + 6

Combine like terms: 0 + 6 = 6
-3x + x2 = 6

The x term is -3x.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3x + 2.25 + x2 = 6 + 2.25

Reorder the terms:
2.25 + -3x + x2 = 6 + 2.25

Combine like terms: 6 + 2.25 = 8.25
2.25 + -3x + x2 = 8.25

Factor a perfect square on the left side:
(x + -1.5)(x + -1.5) = 8.25

Calculate the square root of the right side: 2.872281323

Break this problem into two subproblems by setting 
(x + -1.5) equal to 2.872281323 and -2.872281323.

Subproblem 1

x + -1.5 = 2.872281323 Simplifying x + -1.5 = 2.872281323 Reorder the terms: -1.5 + x = 2.872281323 Solving -1.5 + x = 2.872281323 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = 2.872281323 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 2.872281323 + 1.5 x = 2.872281323 + 1.5 Combine like terms: 2.872281323 + 1.5 = 4.372281323 x = 4.372281323 Simplifying x = 4.372281323

Subproblem 2

x + -1.5 = -2.872281323 Simplifying x + -1.5 = -2.872281323 Reorder the terms: -1.5 + x = -2.872281323 Solving -1.5 + x = -2.872281323 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = -2.872281323 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -2.872281323 + 1.5 x = -2.872281323 + 1.5 Combine like terms: -2.872281323 + 1.5 = -1.372281323 x = -1.372281323 Simplifying x = -1.372281323

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.372281323, -1.372281323}

See similar equations:

| log(x^2-2x+1)-log(x-1)=log(8) | | 16x^3+12x^2+4x= | | (4w-9)(3-w)=0 | | 3a-4b=17 | | -104=-5p-3p | | x^2+4x-16=10 | | 12x^3+8x^2-x-1=0 | | 2x+8=3x-17 | | a/36=5 | | 10(1+11x)=110x+41 | | -2(8-7x)=-128 | | 64=48+x | | -4-12(x+9)=-4(x-12) | | 3(2x-5)=2(x-4) | | 0.75+z=0.83 | | -1(8x-12)=-8(1+x) | | 2(1+11x)=6x+2(1+10x) | | -6x-5y=2 | | 3x^2+60=6x^2 | | -3(1+6n)=-3(n+1) | | 2.4z+1.2-6.5=0.7 | | w(w-4)-3w(3w-2)=(w-4) | | --4(1+p)=7(8+8p) | | -7(-12x+8)=-8(1-11x) | | 2(x*x)+5x-3=0 | | 8+6x=1+5(2x+7) | | x=1250+.25x | | 19+7a=-8-4(-3-a) | | (x*x)+2x=0 | | g-1.7=-0.9 | | -17-x=2(4x-4) | | 6v+5(1-6v)=-26+7v |

Equations solver categories