8x^2+72x-282=6

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Solution for 8x^2+72x-282=6 equation:


Simplifying
8x2 + 72x + -282 = 6

Reorder the terms:
-282 + 72x + 8x2 = 6

Solving
-282 + 72x + 8x2 = 6

Solving for variable 'x'.

Reorder the terms:
-282 + -6 + 72x + 8x2 = 6 + -6

Combine like terms: -282 + -6 = -288
-288 + 72x + 8x2 = 6 + -6

Combine like terms: 6 + -6 = 0
-288 + 72x + 8x2 = 0

Factor out the Greatest Common Factor (GCF), '8'.
8(-36 + 9x + x2) = 0

Factor a trinomial.
8((-12 + -1x)(3 + -1x)) = 0

Ignore the factor 8.

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 '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Solution

x = {-12, 3}

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