(-3x-8)(-x)=16

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Solution for (-3x-8)(-x)=16 equation:


Simplifying
(-3x + -8)(-1x) = 16

Reorder the terms:
(-8 + -3x)(-1x) = 16

Remove parenthesis around (-1x)
(-8 + -3x) * -1x = 16

Reorder the terms for easier multiplication:
-1x(-8 + -3x) = 16
(-8 * -1x + -3x * -1x) = 16
(8x + 3x2) = 16

Solving
8x + 3x2 = 16

Solving for variable 'x'.

Reorder the terms:
-16 + 8x + 3x2 = 16 + -16

Combine like terms: 16 + -16 = 0
-16 + 8x + 3x2 = 0

Factor a trinomial.
(-4 + -1x)(4 + -3x) = 0

Subproblem 1

Set the factor '(-4 + -1x)' equal to zero and attempt to solve: Simplifying -4 + -1x = 0 Solving -4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1x = 0 + 4 -1x = 0 + 4 Combine like terms: 0 + 4 = 4 -1x = 4 Divide each side by '-1'. x = -4 Simplifying x = -4

Subproblem 2

Set the factor '(4 + -3x)' equal to zero and attempt to solve: Simplifying 4 + -3x = 0 Solving 4 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -3x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -3x = 0 + -4 -3x = 0 + -4 Combine like terms: 0 + -4 = -4 -3x = -4 Divide each side by '-3'. x = 1.333333333 Simplifying x = 1.333333333

Solution

x = {-4, 1.333333333}

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