X^2+2X=168

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Solution for X^2+2X=168 equation:


Simplifying
X2 + 2X = 168

Reorder the terms:
2X + X2 = 168

Solving
2X + X2 = 168

Solving for variable 'X'.

Reorder the terms:
-168 + 2X + X2 = 168 + -168

Combine like terms: 168 + -168 = 0
-168 + 2X + X2 = 0

Factor a trinomial.
(-14 + -1X)(12 + -1X) = 0

Subproblem 1

Set the factor '(-14 + -1X)' equal to zero and attempt to solve: Simplifying -14 + -1X = 0 Solving -14 + -1X = 0 Move all terms containing X to the left, all other terms to the right. Add '14' to each side of the equation. -14 + 14 + -1X = 0 + 14 Combine like terms: -14 + 14 = 0 0 + -1X = 0 + 14 -1X = 0 + 14 Combine like terms: 0 + 14 = 14 -1X = 14 Divide each side by '-1'. X = -14 Simplifying X = -14

Subproblem 2

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

Solution

X = {-14, 12}

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