2x(x-6)=80

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Solution for 2x(x-6)=80 equation:


Simplifying
2x(x + -6) = 80

Reorder the terms:
2x(-6 + x) = 80
(-6 * 2x + x * 2x) = 80
(-12x + 2x2) = 80

Solving
-12x + 2x2 = 80

Solving for variable 'x'.

Reorder the terms:
-80 + -12x + 2x2 = 80 + -80

Combine like terms: 80 + -80 = 0
-80 + -12x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-40 + -6x + x2) = 0

Factor a trinomial.
2((-4 + -1x)(10 + -1x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-4 + -1x)' equal to zero and attempt to solve: Simplifying -4 + -1x = 0 Solving -4 + -1x = 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 + -1x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1x = 0 + 4 -1x = 0 + 4 Combine like terms: 0 + 4 = 4 -1x = 4 Divide each side by '-1'. x = -4 Simplifying x = -4

Subproblem 2

Set the factor '(10 + -1x)' equal to zero and attempt to solve: Simplifying 10 + -1x = 0 Solving 10 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + -1x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -1x = 0 + -10 -1x = 0 + -10 Combine like terms: 0 + -10 = -10 -1x = -10 Divide each side by '-1'. x = 10 Simplifying x = 10

Solution

x = {-4, 10}

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