(x-2)(x+1)2+6(x+1)3=0

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Solution for (x-2)(x+1)2+6(x+1)3=0 equation:


Simplifying
(x + -2)(x + 1) * 2 + 6(x + 1) * 3 = 0

Reorder the terms:
(-2 + x)(x + 1) * 2 + 6(x + 1) * 3 = 0

Reorder the terms:
(-2 + x)(1 + x) * 2 + 6(x + 1) * 3 = 0

Reorder the terms for easier multiplication:
2(-2 + x)(1 + x) + 6(x + 1) * 3 = 0

Multiply (-2 + x) * (1 + x)
2(-2(1 + x) + x(1 + x)) + 6(x + 1) * 3 = 0
2((1 * -2 + x * -2) + x(1 + x)) + 6(x + 1) * 3 = 0
2((-2 + -2x) + x(1 + x)) + 6(x + 1) * 3 = 0
2(-2 + -2x + (1 * x + x * x)) + 6(x + 1) * 3 = 0
2(-2 + -2x + (1x + x2)) + 6(x + 1) * 3 = 0

Combine like terms: -2x + 1x = -1x
2(-2 + -1x + x2) + 6(x + 1) * 3 = 0
(-2 * 2 + -1x * 2 + x2 * 2) + 6(x + 1) * 3 = 0
(-4 + -2x + 2x2) + 6(x + 1) * 3 = 0

Reorder the terms:
-4 + -2x + 2x2 + 6(1 + x) * 3 = 0

Reorder the terms for easier multiplication:
-4 + -2x + 2x2 + 6 * 3(1 + x) = 0

Multiply 6 * 3
-4 + -2x + 2x2 + 18(1 + x) = 0
-4 + -2x + 2x2 + (1 * 18 + x * 18) = 0
-4 + -2x + 2x2 + (18 + 18x) = 0

Reorder the terms:
-4 + 18 + -2x + 18x + 2x2 = 0

Combine like terms: -4 + 18 = 14
14 + -2x + 18x + 2x2 = 0

Combine like terms: -2x + 18x = 16x
14 + 16x + 2x2 = 0

Solving
14 + 16x + 2x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(7 + 8x + x2) = 0

Factor a trinomial.
2((7 + x)(1 + x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(7 + x)' equal to zero and attempt to solve: Simplifying 7 + x = 0 Solving 7 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + x = 0 + -7 x = 0 + -7 Combine like terms: 0 + -7 = -7 x = -7 Simplifying x = -7

Subproblem 2

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

Solution

x = {-7, -1}

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