h^2-19h=-90

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Solution for h^2-19h=-90 equation:


Simplifying
h2 + -19h = -90

Reorder the terms:
-19h + h2 = -90

Solving
-19h + h2 = -90

Solving for variable 'h'.

Reorder the terms:
90 + -19h + h2 = -90 + 90

Combine like terms: -90 + 90 = 0
90 + -19h + h2 = 0

Factor a trinomial.
(9 + -1h)(10 + -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 '(10 + -1h)' equal to zero and attempt to solve: Simplifying 10 + -1h = 0 Solving 10 + -1h = 0 Move all terms containing h to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + -1h = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -1h = 0 + -10 -1h = 0 + -10 Combine like terms: 0 + -10 = -10 -1h = -10 Divide each side by '-1'. h = 10 Simplifying h = 10

Solution

h = {9, 10}

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