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

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


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

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

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

Multiply (-1 + x) * (-2 + x)
x2 = 2(-1(-2 + x) + x(-2 + x))
x2 = 2((-2 * -1 + x * -1) + x(-2 + x))
x2 = 2((2 + -1x) + x(-2 + x))
x2 = 2(2 + -1x + (-2 * x + x * x))
x2 = 2(2 + -1x + (-2x + x2))

Combine like terms: -1x + -2x = -3x
x2 = 2(2 + -3x + x2)
x2 = (2 * 2 + -3x * 2 + x2 * 2)
x2 = (4 + -6x + 2x2)

Solving
x2 = 4 + -6x + 2x2

Solving for variable 'x'.

Reorder the terms:
-4 + 6x + x2 + -2x2 = 4 + -6x + 2x2 + -4 + 6x + -2x2

Combine like terms: x2 + -2x2 = -1x2
-4 + 6x + -1x2 = 4 + -6x + 2x2 + -4 + 6x + -2x2

Reorder the terms:
-4 + 6x + -1x2 = 4 + -4 + -6x + 6x + 2x2 + -2x2

Combine like terms: 4 + -4 = 0
-4 + 6x + -1x2 = 0 + -6x + 6x + 2x2 + -2x2
-4 + 6x + -1x2 = -6x + 6x + 2x2 + -2x2

Combine like terms: -6x + 6x = 0
-4 + 6x + -1x2 = 0 + 2x2 + -2x2
-4 + 6x + -1x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-4 + 6x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
4 + -6x + x2 = 0

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + -6x + -4 + x2 = 0 + -4

Reorder the terms:
4 + -4 + -6x + x2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -6x + x2 = 0 + -4
-6x + x2 = 0 + -4

Combine like terms: 0 + -4 = -4
-6x + x2 = -4

The x term is -6x.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6x + 9 + x2 = -4 + 9

Reorder the terms:
9 + -6x + x2 = -4 + 9

Combine like terms: -4 + 9 = 5
9 + -6x + x2 = 5

Factor a perfect square on the left side:
(x + -3)(x + -3) = 5

Calculate the square root of the right side: 2.236067978

Break this problem into two subproblems by setting 
(x + -3) equal to 2.236067978 and -2.236067978.

Subproblem 1

x + -3 = 2.236067978 Simplifying x + -3 = 2.236067978 Reorder the terms: -3 + x = 2.236067978 Solving -3 + x = 2.236067978 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = 2.236067978 + 3 Combine like terms: -3 + 3 = 0 0 + x = 2.236067978 + 3 x = 2.236067978 + 3 Combine like terms: 2.236067978 + 3 = 5.236067978 x = 5.236067978 Simplifying x = 5.236067978

Subproblem 2

x + -3 = -2.236067978 Simplifying x + -3 = -2.236067978 Reorder the terms: -3 + x = -2.236067978 Solving -3 + x = -2.236067978 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = -2.236067978 + 3 Combine like terms: -3 + 3 = 0 0 + x = -2.236067978 + 3 x = -2.236067978 + 3 Combine like terms: -2.236067978 + 3 = 0.763932022 x = 0.763932022 Simplifying x = 0.763932022

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.236067978, 0.763932022}

See similar equations:

| (-5/15)(1/2)(-1/5)(3/8) | | 3(2x-y)+6y=0 | | (5/15)(1/2)(-1/5)(3/8) | | ((7x-1)/3)-((5-2x)/2x)= | | (x^3-1)/(3x^2) | | (y-8)-(y+8)=9y | | (5/7t-5)(1/5t-21) | | 5/7t-5 | | 8n+24=7n+28 | | 2x^3*lnx=0 | | 4x^4+22x^3-12x^2=0 | | 25x=810 | | 12.4(2h+3)=0.9(3h-2) | | 10y^2-13yz-3z^2= | | m+4n=8 | | 0.2w-1.1=0.3w | | 6y^2-13yz-5z^2= | | 8x-15x=35 | | -m=990 | | 10x-25=45 | | x/3=2(x-5 | | 110=5(X-60)+60 | | 64x^2-225y^2=400 | | (3x-2)-(5+4x)= | | x^2+16=-64 | | 10r^3+44r^2-30r= | | (12+3y)+y=16 | | 8+10r+3r^2= | | (3m^2n)(-2m^2n^3)= | | 9-2x=-6x-7 | | -10=46 | | 2(x+1)=6(x-2)-14 |

Equations solver categories