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Simplifying 2q2 + -3q + -25 = 0 Reorder the terms: -25 + -3q + 2q2 = 0 Solving -25 + -3q + 2q2 = 0 Solving for variable 'q'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -12.5 + -1.5q + q2 = 0 Move the constant term to the right: Add '12.5' to each side of the equation. -12.5 + -1.5q + 12.5 + q2 = 0 + 12.5 Reorder the terms: -12.5 + 12.5 + -1.5q + q2 = 0 + 12.5 Combine like terms: -12.5 + 12.5 = 0.0 0.0 + -1.5q + q2 = 0 + 12.5 -1.5q + q2 = 0 + 12.5 Combine like terms: 0 + 12.5 = 12.5 -1.5q + q2 = 12.5 The q term is -1.5q. Take half its coefficient (-0.75). Square it (0.5625) and add it to both sides. Add '0.5625' to each side of the equation. -1.5q + 0.5625 + q2 = 12.5 + 0.5625 Reorder the terms: 0.5625 + -1.5q + q2 = 12.5 + 0.5625 Combine like terms: 12.5 + 0.5625 = 13.0625 0.5625 + -1.5q + q2 = 13.0625 Factor a perfect square on the left side: (q + -0.75)(q + -0.75) = 13.0625 Calculate the square root of the right side: 3.614208074 Break this problem into two subproblems by setting (q + -0.75) equal to 3.614208074 and -3.614208074.Subproblem 1
q + -0.75 = 3.614208074 Simplifying q + -0.75 = 3.614208074 Reorder the terms: -0.75 + q = 3.614208074 Solving -0.75 + q = 3.614208074 Solving for variable 'q'. Move all terms containing q to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + q = 3.614208074 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + q = 3.614208074 + 0.75 q = 3.614208074 + 0.75 Combine like terms: 3.614208074 + 0.75 = 4.364208074 q = 4.364208074 Simplifying q = 4.364208074Subproblem 2
q + -0.75 = -3.614208074 Simplifying q + -0.75 = -3.614208074 Reorder the terms: -0.75 + q = -3.614208074 Solving -0.75 + q = -3.614208074 Solving for variable 'q'. Move all terms containing q to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + q = -3.614208074 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + q = -3.614208074 + 0.75 q = -3.614208074 + 0.75 Combine like terms: -3.614208074 + 0.75 = -2.864208074 q = -2.864208074 Simplifying q = -2.864208074Solution
The solution to the problem is based on the solutions from the subproblems. q = {4.364208074, -2.864208074}
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