x(x-2)=(x+2)2

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


Simplifying
x(x + -2) = (x + 2) * 2

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

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

Reorder the terms for easier multiplication:
-2x + x2 = 2(2 + x)
-2x + x2 = (2 * 2 + x * 2)
-2x + x2 = (4 + 2x)

Solving
-2x + x2 = 4 + 2x

Solving for variable 'x'.

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

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

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

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

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

Begin completing the square.

Move the constant term to the right:

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

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

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

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

The x term is -4x.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

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

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

Combine like terms: 4 + 4 = 8
4 + -4x + x2 = 8

Factor a perfect square on the left side:
(x + -2)(x + -2) = 8

Calculate the square root of the right side: 2.828427125

Break this problem into two subproblems by setting 
(x + -2) equal to 2.828427125 and -2.828427125.

Subproblem 1

x + -2 = 2.828427125 Simplifying x + -2 = 2.828427125 Reorder the terms: -2 + x = 2.828427125 Solving -2 + x = 2.828427125 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = 2.828427125 + 2 Combine like terms: -2 + 2 = 0 0 + x = 2.828427125 + 2 x = 2.828427125 + 2 Combine like terms: 2.828427125 + 2 = 4.828427125 x = 4.828427125 Simplifying x = 4.828427125

Subproblem 2

x + -2 = -2.828427125 Simplifying x + -2 = -2.828427125 Reorder the terms: -2 + x = -2.828427125 Solving -2 + x = -2.828427125 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = -2.828427125 + 2 Combine like terms: -2 + 2 = 0 0 + x = -2.828427125 + 2 x = -2.828427125 + 2 Combine like terms: -2.828427125 + 2 = -0.828427125 x = -0.828427125 Simplifying x = -0.828427125

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.828427125, -0.828427125}

See similar equations:

| 10x^2+15=-31x | | 3/2+4b+45-90+90=540 | | -(4-4x)-7x=-5(x+6) | | -2x^2+9x-7=0 | | 3/2+(b+45)+(2b-90)+90+b=540 | | 10a+2=15 | | 9+3=12 | | 12+2(-3x-7)=5x-4 | | 3c+8=4(c-2)+7 | | -2x-6=11 | | -8x-4=14 | | -9+9=5/3(-5+5) | | -2(2x-3)-5=9(x-2) | | y+9=5/3(-5+5) | | 2(x-3)=6-3(x-2) | | 51a-56=44a+-51a | | 3x-37=2x+17 | | c^2-2c-24=0 | | n^2-10n=-2 | | 20-8Q=Q^2 | | 2*111= | | 12/5x^6-8/5x^3 | | 8Q^2=20 | | x-6x=-2 | | (25-13)/4x2 | | (2+4)*5+10-18+7+5*(3+1*2)= | | 3(k-2)=8 | | 10w^2-29w-3=0 | | 3/(2x-1)+4=6x/(2x-1) | | X+.03=7.25 | | 3/2x-1+4=6x/2x-1 | | 4.5=1.5c |

Equations solver categories