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Simplifying 0 = -16t2 + 12t + 1400 Reorder the terms: 0 = 1400 + 12t + -16t2 Solving 0 = 1400 + 12t + -16t2 Solving for variable 't'. Combine like terms: 0 + -1400 = -1400 -1400 + -12t + 16t2 = 1400 + 12t + -16t2 + -1400 + -12t + 16t2 Reorder the terms: -1400 + -12t + 16t2 = 1400 + -1400 + 12t + -12t + -16t2 + 16t2 Combine like terms: 1400 + -1400 = 0 -1400 + -12t + 16t2 = 0 + 12t + -12t + -16t2 + 16t2 -1400 + -12t + 16t2 = 12t + -12t + -16t2 + 16t2 Combine like terms: 12t + -12t = 0 -1400 + -12t + 16t2 = 0 + -16t2 + 16t2 -1400 + -12t + 16t2 = -16t2 + 16t2 Combine like terms: -16t2 + 16t2 = 0 -1400 + -12t + 16t2 = 0 Factor out the Greatest Common Factor (GCF), '4'. 4(-350 + -3t + 4t2) = 0 Ignore the factor 4.Subproblem 1
Set the factor '(-350 + -3t + 4t2)' equal to zero and attempt to solve: Simplifying -350 + -3t + 4t2 = 0 Solving -350 + -3t + 4t2 = 0 Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. -87.5 + -0.75t + t2 = 0 Move the constant term to the right: Add '87.5' to each side of the equation. -87.5 + -0.75t + 87.5 + t2 = 0 + 87.5 Reorder the terms: -87.5 + 87.5 + -0.75t + t2 = 0 + 87.5 Combine like terms: -87.5 + 87.5 = 0.0 0.0 + -0.75t + t2 = 0 + 87.5 -0.75t + t2 = 0 + 87.5 Combine like terms: 0 + 87.5 = 87.5 -0.75t + t2 = 87.5 The t term is -0.75t. Take half its coefficient (-0.375). Square it (0.140625) and add it to both sides. Add '0.140625' to each side of the equation. -0.75t + 0.140625 + t2 = 87.5 + 0.140625 Reorder the terms: 0.140625 + -0.75t + t2 = 87.5 + 0.140625 Combine like terms: 87.5 + 0.140625 = 87.640625 0.140625 + -0.75t + t2 = 87.640625 Factor a perfect square on the left side: (t + -0.375)(t + -0.375) = 87.640625 Calculate the square root of the right side: 9.361657172 Break this problem into two subproblems by setting (t + -0.375) equal to 9.361657172 and -9.361657172.Subproblem 1
t + -0.375 = 9.361657172 Simplifying t + -0.375 = 9.361657172 Reorder the terms: -0.375 + t = 9.361657172 Solving -0.375 + t = 9.361657172 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.375' to each side of the equation. -0.375 + 0.375 + t = 9.361657172 + 0.375 Combine like terms: -0.375 + 0.375 = 0.000 0.000 + t = 9.361657172 + 0.375 t = 9.361657172 + 0.375 Combine like terms: 9.361657172 + 0.375 = 9.736657172 t = 9.736657172 Simplifying t = 9.736657172Subproblem 2
t + -0.375 = -9.361657172 Simplifying t + -0.375 = -9.361657172 Reorder the terms: -0.375 + t = -9.361657172 Solving -0.375 + t = -9.361657172 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.375' to each side of the equation. -0.375 + 0.375 + t = -9.361657172 + 0.375 Combine like terms: -0.375 + 0.375 = 0.000 0.000 + t = -9.361657172 + 0.375 t = -9.361657172 + 0.375 Combine like terms: -9.361657172 + 0.375 = -8.986657172 t = -8.986657172 Simplifying t = -8.986657172Solution
The solution to the problem is based on the solutions from the subproblems. t = {9.736657172, -8.986657172}Solution
t = {9.736657172, -8.986657172}
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