2x^2+2x=684

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Solution for 2x^2+2x=684 equation:


Simplifying
2x2 + 2x = 684

Reorder the terms:
2x + 2x2 = 684

Solving
2x + 2x2 = 684

Solving for variable 'x'.

Reorder the terms:
-684 + 2x + 2x2 = 684 + -684

Combine like terms: 684 + -684 = 0
-684 + 2x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-342 + x + x2) = 0

Factor a trinomial.
2((-19 + -1x)(18 + -1x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-19 + -1x)' equal to zero and attempt to solve: Simplifying -19 + -1x = 0 Solving -19 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '19' to each side of the equation. -19 + 19 + -1x = 0 + 19 Combine like terms: -19 + 19 = 0 0 + -1x = 0 + 19 -1x = 0 + 19 Combine like terms: 0 + 19 = 19 -1x = 19 Divide each side by '-1'. x = -19 Simplifying x = -19

Subproblem 2

Set the factor '(18 + -1x)' equal to zero and attempt to solve: Simplifying 18 + -1x = 0 Solving 18 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-18' to each side of the equation. 18 + -18 + -1x = 0 + -18 Combine like terms: 18 + -18 = 0 0 + -1x = 0 + -18 -1x = 0 + -18 Combine like terms: 0 + -18 = -18 -1x = -18 Divide each side by '-1'. x = 18 Simplifying x = 18

Solution

x = {-19, 18}

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