(2x)*(x+7)=120

Solution for (2x)*(x+7)=120 equation:

Simplifying
(2x)(x + 7) = 120

Remove parenthesis around (2x)
2x(x + 7) = 120

Reorder the terms:
2x(7 + x) = 120
(7 * 2x + x * 2x) = 120
(14x + 2x2) = 120

Solving
14x + 2x2 = 120

Solving for variable 'x'.

Reorder the terms:
-120 + 14x + 2x2 = 120 + -120

Combine like terms: 120 + -120 = 0
-120 + 14x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-60 + 7x + x2) = 0

Factor a trinomial.
2((-12 + -1x)(5 + -1x)) = 0

Ignore the factor 2.
Subproblem 1
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
Subproblem 2
Set the factor '(5 + -1x)' equal to zero and attempt to solve:

Simplifying
5 + -1x = 0

Solving
5 + -1x = 0

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

Add '-5' to each side of the equation.
5 + -5 + -1x = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -1x = 0 + -5
-1x = 0 + -5

Combine like terms: 0 + -5 = -5
-1x = -5

Divide each side by '-1'.
x = 5

Simplifying
x = 5
Solution
x = {-12, 5}