x^2+12x+3=136

Solution for x^2+12x+3=136 equation:

Simplifying
x2 + 12x + 3 = 136

Reorder the terms:
3 + 12x + x2 = 136

Solving
3 + 12x + x2 = 136

Solving for variable 'x'.

Reorder the terms:
3 + -136 + 12x + x2 = 136 + -136

Combine like terms: 3 + -136 = -133
-133 + 12x + x2 = 136 + -136

Combine like terms: 136 + -136 = 0
-133 + 12x + x2 = 0

Factor a trinomial.
(-19 + -1x)(7 + -1x) = 0

Subproblem 1
Set the factor '(-19 + -1x)' equal to zero and attempt to solve:

Simplifying
-19 + -1x = 0

Solving
-19 + -1x = 0

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

Add '19' to each side of the equation.
-19 + 19 + -1x = 0 + 19

Combine like terms: -19 + 19 = 0
0 + -1x = 0 + 19
-1x = 0 + 19

Combine like terms: 0 + 19 = 19
-1x = 19

Divide each side by '-1'.
x = -19

Simplifying
x = -19
Subproblem 2
Set the factor '(7 + -1x)' equal to zero and attempt to solve:

Simplifying
7 + -1x = 0

Solving
7 + -1x = 0

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

Add '-7' to each side of the equation.
7 + -7 + -1x = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -1x = 0 + -7
-1x = 0 + -7

Combine like terms: 0 + -7 = -7
-1x = -7

Divide each side by '-1'.
x = 7

Simplifying
x = 7
Solution
x = {-19, 7}