2x(x-12)=-40

Solution for 2x(x-12)=-40 equation:

Simplifying
2x(x + -12) = -40

Reorder the terms:
2x(-12 + x) = -40
(-12 * 2x + x * 2x) = -40
(-24x + 2x2) = -40

Solving
-24x + 2x2 = -40

Solving for variable 'x'.

Reorder the terms:
40 + -24x + 2x2 = -40 + 40

Combine like terms: -40 + 40 = 0
40 + -24x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(20 + -12x + x2) = 0

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

Ignore the factor 2.
Subproblem 1
Set the factor '(2 + -1x)' equal to zero and attempt to solve:

Simplifying
2 + -1x = 0

Solving
2 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-2' to each side of the equation.
2 + -2 + -1x = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -1x = 0 + -2
-1x = 0 + -2

Combine like terms: 0 + -2 = -2
-1x = -2

Divide each side by '-1'.
x = 2

Simplifying
x = 2
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 = {2, 10}