h^2+h-72=0

Solution for h^2+h-72=0 equation:

Simplifying
h2 + h + -72 = 0

Reorder the terms:
-72 + h + h2 = 0

Solving
-72 + h + h2 = 0

Solving for variable 'h'.

Factor a trinomial.
(-9 + -1h)(8 + -1h) = 0

Subproblem 1
Set the factor '(-9 + -1h)' equal to zero and attempt to solve:

Simplifying
-9 + -1h = 0

Solving
-9 + -1h = 0

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

Add '9' to each side of the equation.
-9 + 9 + -1h = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -1h = 0 + 9
-1h = 0 + 9

Combine like terms: 0 + 9 = 9
-1h = 9

Divide each side by '-1'.
h = -9

Simplifying
h = -9
Subproblem 2
Set the factor '(8 + -1h)' equal to zero and attempt to solve:

Simplifying
8 + -1h = 0

Solving
8 + -1h = 0

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

Add '-8' to each side of the equation.
8 + -8 + -1h = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -1h = 0 + -8
-1h = 0 + -8

Combine like terms: 0 + -8 = -8
-1h = -8

Divide each side by '-1'.
h = 8

Simplifying
h = 8
Solution
h = {-9, 8}