3x^2-14x-31=-7

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Solution for 3x^2-14x-31=-7 equation:


Simplifying
3x2 + -14x + -31 = -7

Reorder the terms:
-31 + -14x + 3x2 = -7

Solving
-31 + -14x + 3x2 = -7

Solving for variable 'x'.

Reorder the terms:
-31 + 7 + -14x + 3x2 = -7 + 7

Combine like terms: -31 + 7 = -24
-24 + -14x + 3x2 = -7 + 7

Combine like terms: -7 + 7 = 0
-24 + -14x + 3x2 = 0

Factor a trinomial.
(-4 + -3x)(6 + -1x) = 0

Subproblem 1

Set the factor '(-4 + -3x)' equal to zero and attempt to solve: Simplifying -4 + -3x = 0 Solving -4 + -3x = 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 + -3x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -3x = 0 + 4 -3x = 0 + 4 Combine like terms: 0 + 4 = 4 -3x = 4 Divide each side by '-3'. x = -1.333333333 Simplifying x = -1.333333333

Subproblem 2

Set the factor '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6

Solution

x = {-1.333333333, 6}

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