(x+4)(x-2)=(2x+1)(x-2)

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Solution for (x+4)(x-2)=(2x+1)(x-2) equation: 


Simplifying
(x + 4)(x + -2) = (2x + 1)(x + -2)

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

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

Multiply (4 + x) * (-2 + x)
(4(-2 + x) + x(-2 + x)) = (2x + 1)(x + -2)
((-2 * 4 + x * 4) + x(-2 + x)) = (2x + 1)(x + -2)
((-8 + 4x) + x(-2 + x)) = (2x + 1)(x + -2)
(-8 + 4x + (-2 * x + x * x)) = (2x + 1)(x + -2)
(-8 + 4x + (-2x + x2)) = (2x + 1)(x + -2)

Combine like terms: 4x + -2x = 2x
(-8 + 2x + x2) = (2x + 1)(x + -2)

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

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

Multiply (1 + 2x) * (-2 + x)
-8 + 2x + x2 = (1(-2 + x) + 2x * (-2 + x))
-8 + 2x + x2 = ((-2 * 1 + x * 1) + 2x * (-2 + x))
-8 + 2x + x2 = ((-2 + 1x) + 2x * (-2 + x))
-8 + 2x + x2 = (-2 + 1x + (-2 * 2x + x * 2x))
-8 + 2x + x2 = (-2 + 1x + (-4x + 2x2))

Combine like terms: 1x + -4x = -3x
-8 + 2x + x2 = (-2 + -3x + 2x2)

Solving
-8 + 2x + x2 = -2 + -3x + 2x2

Solving for variable 'x'.

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

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

Combine like terms: 2x + 3x = 5x
-6 + 5x + x2 + -2x2 = -2 + -3x + 2x2 + 2 + 3x + -2x2

Combine like terms: x2 + -2x2 = -1x2
-6 + 5x + -1x2 = -2 + -3x + 2x2 + 2 + 3x + -2x2

Reorder the terms:
-6 + 5x + -1x2 = -2 + 2 + -3x + 3x + 2x2 + -2x2

Combine like terms: -2 + 2 = 0
-6 + 5x + -1x2 = 0 + -3x + 3x + 2x2 + -2x2
-6 + 5x + -1x2 = -3x + 3x + 2x2 + -2x2

Combine like terms: -3x + 3x = 0
-6 + 5x + -1x2 = 0 + 2x2 + -2x2
-6 + 5x + -1x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-6 + 5x + -1x2 = 0

Factor a trinomial.
(-3 + x)(2 + -1x) = 0


Subproblem 1
Set the factor '(-3 + x)' equal to zero and attempt to solve:

Simplifying
-3 + x = 0

Solving
-3 + x = 0

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 = 0 + 3

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

Combine like terms: 0 + 3 = 3
x = 3

Simplifying
x = 3

Subproblem 2
Set the factor '(2 + -1x)' equal to zero and attempt to solve:

Simplifying
2 + -1x = 0

Solving
2 + -1x = 0

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

Add '-2' to each side of the equation.
2 + -2 + -1x = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -1x = 0 + -2
-1x = 0 + -2

Combine like terms: 0 + -2 = -2
-1x = -2

Divide each side by '-1'.
x = 2

Simplifying
x = 2
Solution
x = {3, 2}

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