x^2+14x+18=90

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Solution for x^2+14x+18=90 equation:


Simplifying
x2 + 14x + 18 = 90

Reorder the terms:
18 + 14x + x2 = 90

Solving
18 + 14x + x2 = 90

Solving for variable 'x'.

Reorder the terms:
18 + -90 + 14x + x2 = 90 + -90

Combine like terms: 18 + -90 = -72
-72 + 14x + x2 = 90 + -90

Combine like terms: 90 + -90 = 0
-72 + 14x + x2 = 0

Factor a trinomial.
(-18 + -1x)(4 + -1x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4

Solution

x = {-18, 4}

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