3x^2+31x=-56

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Solution for 3x^2+31x=-56 equation:


Simplifying
3x2 + 31x = -56

Reorder the terms:
31x + 3x2 = -56

Solving
31x + 3x2 = -56

Solving for variable 'x'.

Reorder the terms:
56 + 31x + 3x2 = -56 + 56

Combine like terms: -56 + 56 = 0
56 + 31x + 3x2 = 0

Factor a trinomial.
(8 + x)(7 + 3x) = 0

Subproblem 1

Set the factor '(8 + x)' equal to zero and attempt to solve: Simplifying 8 + x = 0 Solving 8 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + x = 0 + -8 x = 0 + -8 Combine like terms: 0 + -8 = -8 x = -8 Simplifying x = -8

Subproblem 2

Set the factor '(7 + 3x)' equal to zero and attempt to solve: Simplifying 7 + 3x = 0 Solving 7 + 3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 3x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 3x = 0 + -7 3x = 0 + -7 Combine like terms: 0 + -7 = -7 3x = -7 Divide each side by '3'. x = -2.333333333 Simplifying x = -2.333333333

Solution

x = {-8, -2.333333333}

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