6x^2+8x=78

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Solution for 6x^2+8x=78 equation:


Simplifying
6x2 + 8x = 78

Reorder the terms:
8x + 6x2 = 78

Solving
8x + 6x2 = 78

Solving for variable 'x'.

Reorder the terms:
-78 + 8x + 6x2 = 78 + -78

Combine like terms: 78 + -78 = 0
-78 + 8x + 6x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-39 + 4x + 3x2) = 0

Factor a trinomial.
2((-13 + -3x)(3 + -1x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-13 + -3x)' equal to zero and attempt to solve: Simplifying -13 + -3x = 0 Solving -13 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + -3x = 0 + 13 Combine like terms: -13 + 13 = 0 0 + -3x = 0 + 13 -3x = 0 + 13 Combine like terms: 0 + 13 = 13 -3x = 13 Divide each side by '-3'. x = -4.333333333 Simplifying x = -4.333333333

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 = {-4.333333333, 3}

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