(x-2)3x-(x+2)(x-2)3=(x+2)(x-9)

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Solution for (x-2)3x-(x+2)(x-2)3=(x+2)(x-9) equation:


Simplifying
(x + -2) * 3x + -1(x + 2)(x + -2) * 3 = (x + 2)(x + -9)

Reorder the terms:
(-2 + x) * 3x + -1(x + 2)(x + -2) * 3 = (x + 2)(x + -9)

Reorder the terms for easier multiplication:
3x(-2 + x) + -1(x + 2)(x + -2) * 3 = (x + 2)(x + -9)
(-2 * 3x + x * 3x) + -1(x + 2)(x + -2) * 3 = (x + 2)(x + -9)
(-6x + 3x2) + -1(x + 2)(x + -2) * 3 = (x + 2)(x + -9)

Reorder the terms:
-6x + 3x2 + -1(2 + x)(x + -2) * 3 = (x + 2)(x + -9)

Reorder the terms:
-6x + 3x2 + -1(2 + x)(-2 + x) * 3 = (x + 2)(x + -9)

Reorder the terms for easier multiplication:
-6x + 3x2 + -1 * 3(2 + x)(-2 + x) = (x + 2)(x + -9)

Multiply -1 * 3
-6x + 3x2 + -3(2 + x)(-2 + x) = (x + 2)(x + -9)

Multiply (2 + x) * (-2 + x)
-6x + 3x2 + -3(2(-2 + x) + x(-2 + x)) = (x + 2)(x + -9)
-6x + 3x2 + -3((-2 * 2 + x * 2) + x(-2 + x)) = (x + 2)(x + -9)
-6x + 3x2 + -3((-4 + 2x) + x(-2 + x)) = (x + 2)(x + -9)
-6x + 3x2 + -3(-4 + 2x + (-2 * x + x * x)) = (x + 2)(x + -9)
-6x + 3x2 + -3(-4 + 2x + (-2x + x2)) = (x + 2)(x + -9)

Combine like terms: 2x + -2x = 0
-6x + 3x2 + -3(-4 + 0 + x2) = (x + 2)(x + -9)
-6x + 3x2 + -3(-4 + x2) = (x + 2)(x + -9)
-6x + 3x2 + (-4 * -3 + x2 * -3) = (x + 2)(x + -9)
-6x + 3x2 + (12 + -3x2) = (x + 2)(x + -9)

Reorder the terms:
12 + -6x + 3x2 + -3x2 = (x + 2)(x + -9)

Combine like terms: 3x2 + -3x2 = 0
12 + -6x + 0 = (x + 2)(x + -9)
12 + -6x = (x + 2)(x + -9)

Reorder the terms:
12 + -6x = (2 + x)(x + -9)

Reorder the terms:
12 + -6x = (2 + x)(-9 + x)

Multiply (2 + x) * (-9 + x)
12 + -6x = (2(-9 + x) + x(-9 + x))
12 + -6x = ((-9 * 2 + x * 2) + x(-9 + x))
12 + -6x = ((-18 + 2x) + x(-9 + x))
12 + -6x = (-18 + 2x + (-9 * x + x * x))
12 + -6x = (-18 + 2x + (-9x + x2))

Combine like terms: 2x + -9x = -7x
12 + -6x = (-18 + -7x + x2)

Solving
12 + -6x = -18 + -7x + x2

Solving for variable 'x'.

Reorder the terms:
12 + 18 + -6x + 7x + -1x2 = -18 + -7x + x2 + 18 + 7x + -1x2

Combine like terms: 12 + 18 = 30
30 + -6x + 7x + -1x2 = -18 + -7x + x2 + 18 + 7x + -1x2

Combine like terms: -6x + 7x = 1x
30 + 1x + -1x2 = -18 + -7x + x2 + 18 + 7x + -1x2

Reorder the terms:
30 + 1x + -1x2 = -18 + 18 + -7x + 7x + x2 + -1x2

Combine like terms: -18 + 18 = 0
30 + 1x + -1x2 = 0 + -7x + 7x + x2 + -1x2
30 + 1x + -1x2 = -7x + 7x + x2 + -1x2

Combine like terms: -7x + 7x = 0
30 + 1x + -1x2 = 0 + x2 + -1x2
30 + 1x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
30 + 1x + -1x2 = 0

Factor a trinomial.
(6 + -1x)(5 + x) = 0

Subproblem 1

Set the factor '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6

Subproblem 2

Set the factor '(5 + x)' equal to zero and attempt to solve: Simplifying 5 + x = 0 Solving 5 + x = 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 + x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + x = 0 + -5 x = 0 + -5 Combine like terms: 0 + -5 = -5 x = -5 Simplifying x = -5

Solution

x = {6, -5}

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