336=-x(-2x-4)

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Solution for 336=-x(-2x-4) equation:


Simplifying
336 = -1x(-2x + -4)

Reorder the terms:
336 = -1x(-4 + -2x)
336 = (-4 * -1x + -2x * -1x)
336 = (4x + 2x2)

Solving
336 = 4x + 2x2

Solving for variable 'x'.

Reorder the terms:
336 + -4x + -2x2 = 4x + -4x + 2x2 + -2x2

Combine like terms: 4x + -4x = 0
336 + -4x + -2x2 = 0 + 2x2 + -2x2
336 + -4x + -2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
336 + -4x + -2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(168 + -2x + -1x2) = 0

Factor a trinomial.
2((12 + -1x)(14 + x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(12 + -1x)' equal to zero and attempt to solve: Simplifying 12 + -1x = 0 Solving 12 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + -1x = 0 + -12 Combine like terms: 12 + -12 = 0 0 + -1x = 0 + -12 -1x = 0 + -12 Combine like terms: 0 + -12 = -12 -1x = -12 Divide each side by '-1'. x = 12 Simplifying x = 12

Subproblem 2

Set the factor '(14 + x)' equal to zero and attempt to solve: Simplifying 14 + x = 0 Solving 14 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + x = 0 + -14 Combine like terms: 14 + -14 = 0 0 + x = 0 + -14 x = 0 + -14 Combine like terms: 0 + -14 = -14 x = -14 Simplifying x = -14

Solution

x = {12, -14}

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