(x-19)(x+12)=0

Solution for (x-19)(x+12)=0 equation:

Simplifying
(x + -19)(x + 12) = 0

Reorder the terms:
(-19 + x)(x + 12) = 0

Reorder the terms:
(-19 + x)(12 + x) = 0

Multiply (-19 + x) * (12 + x)
(-19(12 + x) + x(12 + x)) = 0
((12 * -19 + x * -19) + x(12 + x)) = 0
((-228 + -19x) + x(12 + x)) = 0
(-228 + -19x + (12 * x + x * x)) = 0
(-228 + -19x + (12x + x2)) = 0

Combine like terms: -19x + 12x = -7x
(-228 + -7x + x2) = 0

Solving
-228 + -7x + x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-12 + -1x)(19 + -1x) = 0

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 '(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
Solution
x = {-12, 19}