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Simplifying 6p(1.3p + -3) = 2.6p + -5 Reorder the terms: 6p(-3 + 1.3p) = 2.6p + -5 (-3 * 6p + 1.3p * 6p) = 2.6p + -5 (-18p + 7.8p2) = 2.6p + -5 Reorder the terms: -18p + 7.8p2 = -5 + 2.6p Solving -18p + 7.8p2 = -5 + 2.6p Solving for variable 'p'. Reorder the terms: 5 + -18p + -2.6p + 7.8p2 = -5 + 2.6p + 5 + -2.6p Combine like terms: -18p + -2.6p = -20.6p 5 + -20.6p + 7.8p2 = -5 + 2.6p + 5 + -2.6p Reorder the terms: 5 + -20.6p + 7.8p2 = -5 + 5 + 2.6p + -2.6p Combine like terms: -5 + 5 = 0 5 + -20.6p + 7.8p2 = 0 + 2.6p + -2.6p 5 + -20.6p + 7.8p2 = 2.6p + -2.6p Combine like terms: 2.6p + -2.6p = 0.0 5 + -20.6p + 7.8p2 = 0.0 Begin completing the square. Divide all terms by 7.8 the coefficient of the squared term: Divide each side by '7.8'. 0.641025641 + -2.641025641p + p2 = 0 Move the constant term to the right: Add '-0.641025641' to each side of the equation. 0.641025641 + -2.641025641p + -0.641025641 + p2 = 0 + -0.641025641 Reorder the terms: 0.641025641 + -0.641025641 + -2.641025641p + p2 = 0 + -0.641025641 Combine like terms: 0.641025641 + -0.641025641 = 0.000000000 0.000000000 + -2.641025641p + p2 = 0 + -0.641025641 -2.641025641p + p2 = 0 + -0.641025641 Combine like terms: 0 + -0.641025641 = -0.641025641 -2.641025641p + p2 = -0.641025641 The p term is -2.641025641p. Take half its coefficient (-1.320512821). Square it (1.743754110) and add it to both sides. Add '1.743754110' to each side of the equation. -2.641025641p + 1.743754110 + p2 = -0.641025641 + 1.743754110 Reorder the terms: 1.743754110 + -2.641025641p + p2 = -0.641025641 + 1.743754110 Combine like terms: -0.641025641 + 1.743754110 = 1.102728469 1.743754110 + -2.641025641p + p2 = 1.102728469 Factor a perfect square on the left side: (p + -1.320512821)(p + -1.320512821) = 1.102728469 Calculate the square root of the right side: 1.050108789 Break this problem into two subproblems by setting (p + -1.320512821) equal to 1.050108789 and -1.050108789.Subproblem 1
p + -1.320512821 = 1.050108789 Simplifying p + -1.320512821 = 1.050108789 Reorder the terms: -1.320512821 + p = 1.050108789 Solving -1.320512821 + p = 1.050108789 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '1.320512821' to each side of the equation. -1.320512821 + 1.320512821 + p = 1.050108789 + 1.320512821 Combine like terms: -1.320512821 + 1.320512821 = 0.000000000 0.000000000 + p = 1.050108789 + 1.320512821 p = 1.050108789 + 1.320512821 Combine like terms: 1.050108789 + 1.320512821 = 2.37062161 p = 2.37062161 Simplifying p = 2.37062161Subproblem 2
p + -1.320512821 = -1.050108789 Simplifying p + -1.320512821 = -1.050108789 Reorder the terms: -1.320512821 + p = -1.050108789 Solving -1.320512821 + p = -1.050108789 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '1.320512821' to each side of the equation. -1.320512821 + 1.320512821 + p = -1.050108789 + 1.320512821 Combine like terms: -1.320512821 + 1.320512821 = 0.000000000 0.000000000 + p = -1.050108789 + 1.320512821 p = -1.050108789 + 1.320512821 Combine like terms: -1.050108789 + 1.320512821 = 0.270404032 p = 0.270404032 Simplifying p = 0.270404032Solution
The solution to the problem is based on the solutions from the subproblems. p = {2.37062161, 0.270404032}
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