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

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


Simplifying
(x + 1)(-2x + -2) = 0

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

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

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

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

Solving
-2 + -4x + -2x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '-2'.
-2(1 + 2x + x2) = 0

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

Ignore the factor -2.

Subproblem 1

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

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 = {-1, -1}

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