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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) = 0Subproblem 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 = 9Subproblem 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 = 10Solution
h = {9, 10}
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