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Simplifying 16t2 + -31t + -4 = 0 Reorder the terms: -4 + -31t + 16t2 = 0 Solving -4 + -31t + 16t2 = 0 Solving for variable 't'. Begin completing the square. Divide all terms by 16 the coefficient of the squared term: Divide each side by '16'. -0.25 + -1.9375t + t2 = 0 Move the constant term to the right: Add '0.25' to each side of the equation. -0.25 + -1.9375t + 0.25 + t2 = 0 + 0.25 Reorder the terms: -0.25 + 0.25 + -1.9375t + t2 = 0 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + -1.9375t + t2 = 0 + 0.25 -1.9375t + t2 = 0 + 0.25 Combine like terms: 0 + 0.25 = 0.25 -1.9375t + t2 = 0.25 The t term is -1.9375t. Take half its coefficient (-0.96875). Square it (0.9384765625) and add it to both sides. Add '0.9384765625' to each side of the equation. -1.9375t + 0.9384765625 + t2 = 0.25 + 0.9384765625 Reorder the terms: 0.9384765625 + -1.9375t + t2 = 0.25 + 0.9384765625 Combine like terms: 0.25 + 0.9384765625 = 1.1884765625 0.9384765625 + -1.9375t + t2 = 1.1884765625 Factor a perfect square on the left side: (t + -0.96875)(t + -0.96875) = 1.1884765625 Calculate the square root of the right side: 1.090172721 Break this problem into two subproblems by setting (t + -0.96875) equal to 1.090172721 and -1.090172721.Subproblem 1
t + -0.96875 = 1.090172721 Simplifying t + -0.96875 = 1.090172721 Reorder the terms: -0.96875 + t = 1.090172721 Solving -0.96875 + t = 1.090172721 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.96875' to each side of the equation. -0.96875 + 0.96875 + t = 1.090172721 + 0.96875 Combine like terms: -0.96875 + 0.96875 = 0.00000 0.00000 + t = 1.090172721 + 0.96875 t = 1.090172721 + 0.96875 Combine like terms: 1.090172721 + 0.96875 = 2.058922721 t = 2.058922721 Simplifying t = 2.058922721Subproblem 2
t + -0.96875 = -1.090172721 Simplifying t + -0.96875 = -1.090172721 Reorder the terms: -0.96875 + t = -1.090172721 Solving -0.96875 + t = -1.090172721 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.96875' to each side of the equation. -0.96875 + 0.96875 + t = -1.090172721 + 0.96875 Combine like terms: -0.96875 + 0.96875 = 0.00000 0.00000 + t = -1.090172721 + 0.96875 t = -1.090172721 + 0.96875 Combine like terms: -1.090172721 + 0.96875 = -0.121422721 t = -0.121422721 Simplifying t = -0.121422721Solution
The solution to the problem is based on the solutions from the subproblems. t = {2.058922721, -0.121422721}
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