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Simplifying 9p2 + -30p + 22 = 0 Reorder the terms: 22 + -30p + 9p2 = 0 Solving 22 + -30p + 9p2 = 0 Solving for variable 'p'. Begin completing the square. Divide all terms by 9 the coefficient of the squared term: Divide each side by '9'. 2.444444444 + -3.333333333p + p2 = 0 Move the constant term to the right: Add '-2.444444444' to each side of the equation. 2.444444444 + -3.333333333p + -2.444444444 + p2 = 0 + -2.444444444 Reorder the terms: 2.444444444 + -2.444444444 + -3.333333333p + p2 = 0 + -2.444444444 Combine like terms: 2.444444444 + -2.444444444 = 0.000000000 0.000000000 + -3.333333333p + p2 = 0 + -2.444444444 -3.333333333p + p2 = 0 + -2.444444444 Combine like terms: 0 + -2.444444444 = -2.444444444 -3.333333333p + p2 = -2.444444444 The p term is -3.333333333p. Take half its coefficient (-1.666666667). Square it (2.777777779) and add it to both sides. Add '2.777777779' to each side of the equation. -3.333333333p + 2.777777779 + p2 = -2.444444444 + 2.777777779 Reorder the terms: 2.777777779 + -3.333333333p + p2 = -2.444444444 + 2.777777779 Combine like terms: -2.444444444 + 2.777777779 = 0.333333335 2.777777779 + -3.333333333p + p2 = 0.333333335 Factor a perfect square on the left side: (p + -1.666666667)(p + -1.666666667) = 0.333333335 Calculate the square root of the right side: 0.577350271 Break this problem into two subproblems by setting (p + -1.666666667) equal to 0.577350271 and -0.577350271.Subproblem 1
p + -1.666666667 = 0.577350271 Simplifying p + -1.666666667 = 0.577350271 Reorder the terms: -1.666666667 + p = 0.577350271 Solving -1.666666667 + p = 0.577350271 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '1.666666667' to each side of the equation. -1.666666667 + 1.666666667 + p = 0.577350271 + 1.666666667 Combine like terms: -1.666666667 + 1.666666667 = 0.000000000 0.000000000 + p = 0.577350271 + 1.666666667 p = 0.577350271 + 1.666666667 Combine like terms: 0.577350271 + 1.666666667 = 2.244016938 p = 2.244016938 Simplifying p = 2.244016938Subproblem 2
p + -1.666666667 = -0.577350271 Simplifying p + -1.666666667 = -0.577350271 Reorder the terms: -1.666666667 + p = -0.577350271 Solving -1.666666667 + p = -0.577350271 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '1.666666667' to each side of the equation. -1.666666667 + 1.666666667 + p = -0.577350271 + 1.666666667 Combine like terms: -1.666666667 + 1.666666667 = 0.000000000 0.000000000 + p = -0.577350271 + 1.666666667 p = -0.577350271 + 1.666666667 Combine like terms: -0.577350271 + 1.666666667 = 1.089316396 p = 1.089316396 Simplifying p = 1.089316396Solution
The solution to the problem is based on the solutions from the subproblems. p = {2.244016938, 1.089316396}
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