3x^2-8x-128=0

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Solution for 3x^2-8x-128=0 equation:


Simplifying
3x2 + -8x + -128 = 0

Reorder the terms:
-128 + -8x + 3x2 = 0

Solving
-128 + -8x + 3x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-16 + -3x)(8 + -1x) = 0

Subproblem 1

Set the factor '(-16 + -3x)' equal to zero and attempt to solve: Simplifying -16 + -3x = 0 Solving -16 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '16' to each side of the equation. -16 + 16 + -3x = 0 + 16 Combine like terms: -16 + 16 = 0 0 + -3x = 0 + 16 -3x = 0 + 16 Combine like terms: 0 + 16 = 16 -3x = 16 Divide each side by '-3'. x = -5.333333333 Simplifying x = -5.333333333

Subproblem 2

Set the factor '(8 + -1x)' equal to zero and attempt to solve: Simplifying 8 + -1x = 0 Solving 8 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1x = 0 + -8 -1x = 0 + -8 Combine like terms: 0 + -8 = -8 -1x = -8 Divide each side by '-1'. x = 8 Simplifying x = 8

Solution

x = {-5.333333333, 8}

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