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Simplifying p2 + 7p + -9 = 9 Reorder the terms: -9 + 7p + p2 = 9 Solving -9 + 7p + p2 = 9 Solving for variable 'p'. Reorder the terms: -9 + -9 + 7p + p2 = 9 + -9 Combine like terms: -9 + -9 = -18 -18 + 7p + p2 = 9 + -9 Combine like terms: 9 + -9 = 0 -18 + 7p + p2 = 0 Factor a trinomial. (-9 + -1p)(2 + -1p) = 0Subproblem 1
Set the factor '(-9 + -1p)' equal to zero and attempt to solve: Simplifying -9 + -1p = 0 Solving -9 + -1p = 0 Move all terms containing p to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -1p = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -1p = 0 + 9 -1p = 0 + 9 Combine like terms: 0 + 9 = 9 -1p = 9 Divide each side by '-1'. p = -9 Simplifying p = -9Subproblem 2
Set the factor '(2 + -1p)' equal to zero and attempt to solve: Simplifying 2 + -1p = 0 Solving 2 + -1p = 0 Move all terms containing p to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1p = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1p = 0 + -2 -1p = 0 + -2 Combine like terms: 0 + -2 = -2 -1p = -2 Divide each side by '-1'. p = 2 Simplifying p = 2Solution
p = {-9, 2}
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