8x^2+22x=-15

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Solution for 8x^2+22x=-15 equation:


Simplifying
8x2 + 22x = -15

Reorder the terms:
22x + 8x2 = -15

Solving
22x + 8x2 = -15

Solving for variable 'x'.

Reorder the terms:
15 + 22x + 8x2 = -15 + 15

Combine like terms: -15 + 15 = 0
15 + 22x + 8x2 = 0

Factor a trinomial.
(3 + 2x)(5 + 4x) = 0

Subproblem 1

Set the factor '(3 + 2x)' equal to zero and attempt to solve: Simplifying 3 + 2x = 0 Solving 3 + 2x = 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 + 2x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 2x = 0 + -3 2x = 0 + -3 Combine like terms: 0 + -3 = -3 2x = -3 Divide each side by '2'. x = -1.5 Simplifying x = -1.5

Subproblem 2

Set the factor '(5 + 4x)' equal to zero and attempt to solve: Simplifying 5 + 4x = 0 Solving 5 + 4x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 4x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 4x = 0 + -5 4x = 0 + -5 Combine like terms: 0 + -5 = -5 4x = -5 Divide each side by '4'. x = -1.25 Simplifying x = -1.25

Solution

x = {-1.5, -1.25}

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