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Simplifying 3p2 + -9p + -8 = 0 Reorder the terms: -8 + -9p + 3p2 = 0 Solving -8 + -9p + 3p2 = 0 Solving for variable 'p'. Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. -2.666666667 + -3p + p2 = 0 Move the constant term to the right: Add '2.666666667' to each side of the equation. -2.666666667 + -3p + 2.666666667 + p2 = 0 + 2.666666667 Reorder the terms: -2.666666667 + 2.666666667 + -3p + p2 = 0 + 2.666666667 Combine like terms: -2.666666667 + 2.666666667 = 0.000000000 0.000000000 + -3p + p2 = 0 + 2.666666667 -3p + p2 = 0 + 2.666666667 Combine like terms: 0 + 2.666666667 = 2.666666667 -3p + p2 = 2.666666667 The p term is -3p. Take half its coefficient (-1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. -3p + 2.25 + p2 = 2.666666667 + 2.25 Reorder the terms: 2.25 + -3p + p2 = 2.666666667 + 2.25 Combine like terms: 2.666666667 + 2.25 = 4.916666667 2.25 + -3p + p2 = 4.916666667 Factor a perfect square on the left side: (p + -1.5)(p + -1.5) = 4.916666667 Calculate the square root of the right side: 2.217355783 Break this problem into two subproblems by setting (p + -1.5) equal to 2.217355783 and -2.217355783.Subproblem 1
p + -1.5 = 2.217355783 Simplifying p + -1.5 = 2.217355783 Reorder the terms: -1.5 + p = 2.217355783 Solving -1.5 + p = 2.217355783 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + p = 2.217355783 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + p = 2.217355783 + 1.5 p = 2.217355783 + 1.5 Combine like terms: 2.217355783 + 1.5 = 3.717355783 p = 3.717355783 Simplifying p = 3.717355783Subproblem 2
p + -1.5 = -2.217355783 Simplifying p + -1.5 = -2.217355783 Reorder the terms: -1.5 + p = -2.217355783 Solving -1.5 + p = -2.217355783 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + p = -2.217355783 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + p = -2.217355783 + 1.5 p = -2.217355783 + 1.5 Combine like terms: -2.217355783 + 1.5 = -0.717355783 p = -0.717355783 Simplifying p = -0.717355783Solution
The solution to the problem is based on the solutions from the subproblems. p = {3.717355783, -0.717355783}
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