h^2+13h+42=0

Solution for h^2+13h+42=0 equation:

Simplifying
h2 + 13h + 42 = 0

Reorder the terms:
42 + 13h + h2 = 0

Solving
42 + 13h + h2 = 0

Solving for variable 'h'.

Factor a trinomial.
(7 + h)(6 + h) = 0

Subproblem 1
Set the factor '(7 + h)' equal to zero and attempt to solve:

Simplifying
7 + h = 0

Solving
7 + h = 0

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

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

Combine like terms: 7 + -7 = 0
0 + h = 0 + -7
h = 0 + -7

Combine like terms: 0 + -7 = -7
h = -7

Simplifying
h = -7
Subproblem 2
Set the factor '(6 + h)' equal to zero and attempt to solve:

Simplifying
6 + h = 0

Solving
6 + h = 0

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

Add '-6' to each side of the equation.
6 + -6 + h = 0 + -6

Combine like terms: 6 + -6 = 0
0 + h = 0 + -6
h = 0 + -6

Combine like terms: 0 + -6 = -6
h = -6

Simplifying
h = -6
Solution
h = {-7, -6}