-2(x+7)(x-6)=0

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Solution for -2(x+7)(x-6)=0 equation:


Simplifying
-2(x + 7)(x + -6) = 0

Reorder the terms:
-2(7 + x)(x + -6) = 0

Reorder the terms:
-2(7 + x)(-6 + x) = 0

Multiply (7 + x) * (-6 + x)
-2(7(-6 + x) + x(-6 + x)) = 0
-2((-6 * 7 + x * 7) + x(-6 + x)) = 0
-2((-42 + 7x) + x(-6 + x)) = 0
-2(-42 + 7x + (-6 * x + x * x)) = 0
-2(-42 + 7x + (-6x + x2)) = 0

Combine like terms: 7x + -6x = 1x
-2(-42 + 1x + x2) = 0
(-42 * -2 + 1x * -2 + x2 * -2) = 0
(84 + -2x + -2x2) = 0

Solving
84 + -2x + -2x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(42 + -1x + -1x2) = 0

Factor a trinomial.
2((6 + -1x)(7 + x)) = 0

Ignore the factor 2.

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 '(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

Solution

x = {6, -7}

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