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Simplifying -2p2 = p + -21 Reorder the terms: -2p2 = -21 + p Solving -2p2 = -21 + p Solving for variable 'p'. Reorder the terms: 21 + -1p + -2p2 = -21 + p + 21 + -1p Reorder the terms: 21 + -1p + -2p2 = -21 + 21 + p + -1p Combine like terms: -21 + 21 = 0 21 + -1p + -2p2 = 0 + p + -1p 21 + -1p + -2p2 = p + -1p Combine like terms: p + -1p = 0 21 + -1p + -2p2 = 0 Factor a trinomial. (3 + -1p)(7 + 2p) = 0Subproblem 1
Set the factor '(3 + -1p)' equal to zero and attempt to solve: Simplifying 3 + -1p = 0 Solving 3 + -1p = 0 Move all terms containing p to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1p = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1p = 0 + -3 -1p = 0 + -3 Combine like terms: 0 + -3 = -3 -1p = -3 Divide each side by '-1'. p = 3 Simplifying p = 3Subproblem 2
Set the factor '(7 + 2p)' equal to zero and attempt to solve: Simplifying 7 + 2p = 0 Solving 7 + 2p = 0 Move all terms containing p to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 2p = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 2p = 0 + -7 2p = 0 + -7 Combine like terms: 0 + -7 = -7 2p = -7 Divide each side by '2'. p = -3.5 Simplifying p = -3.5Solution
p = {3, -3.5}
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