3x^2=31x-56

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


Simplifying
3x2 = 31x + -56

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

Solving
3x2 = -56 + 31x

Solving for variable 'x'.

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

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

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

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

Factor a trinomial.
(7 + -3x)(8 + -1x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(8 + -1x)' equal to zero and attempt to solve: Simplifying 8 + -1x = 0 Solving 8 + -1x = 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 + -1x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1x = 0 + -8 -1x = 0 + -8 Combine like terms: 0 + -8 = -8 -1x = -8 Divide each side by '-1'. x = 8 Simplifying x = 8

Solution

x = {2.333333333, 8}

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