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Simplifying h2 + 3h + -28 = 0 Reorder the terms: -28 + 3h + h2 = 0 Solving -28 + 3h + h2 = 0 Solving for variable 'h'. Factor a trinomial. (-7 + -1h)(4 + -1h) = 0Subproblem 1
Set the factor '(-7 + -1h)' equal to zero and attempt to solve: Simplifying -7 + -1h = 0 Solving -7 + -1h = 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 + -1h = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -1h = 0 + 7 -1h = 0 + 7 Combine like terms: 0 + 7 = 7 -1h = 7 Divide each side by '-1'. h = -7 Simplifying h = -7Subproblem 2
Set the factor '(4 + -1h)' equal to zero and attempt to solve: Simplifying 4 + -1h = 0 Solving 4 + -1h = 0 Move all terms containing h to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1h = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1h = 0 + -4 -1h = 0 + -4 Combine like terms: 0 + -4 = -4 -1h = -4 Divide each side by '-1'. h = 4 Simplifying h = 4Solution
h = {-7, 4}
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