4x-12+x^2-5x=120

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Solution for 4x-12+x^2-5x=120 equation:


Simplifying
4x + -12 + x2 + -5x = 120

Reorder the terms:
-12 + 4x + -5x + x2 = 120

Combine like terms: 4x + -5x = -1x
-12 + -1x + x2 = 120

Solving
-12 + -1x + x2 = 120

Solving for variable 'x'.

Reorder the terms:
-12 + -120 + -1x + x2 = 120 + -120

Combine like terms: -12 + -120 = -132
-132 + -1x + x2 = 120 + -120

Combine like terms: 120 + -120 = 0
-132 + -1x + x2 = 0

Factor a trinomial.
(-11 + -1x)(12 + -1x) = 0

Subproblem 1

Set the factor '(-11 + -1x)' equal to zero and attempt to solve: Simplifying -11 + -1x = 0 Solving -11 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + -1x = 0 + 11 Combine like terms: -11 + 11 = 0 0 + -1x = 0 + 11 -1x = 0 + 11 Combine like terms: 0 + 11 = 11 -1x = 11 Divide each side by '-1'. x = -11 Simplifying x = -11

Subproblem 2

Set the factor '(12 + -1x)' equal to zero and attempt to solve: Simplifying 12 + -1x = 0 Solving 12 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + -1x = 0 + -12 Combine like terms: 12 + -12 = 0 0 + -1x = 0 + -12 -1x = 0 + -12 Combine like terms: 0 + -12 = -12 -1x = -12 Divide each side by '-1'. x = 12 Simplifying x = 12

Solution

x = {-11, 12}

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