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Simplifying -16t2 + 135t + 15 = 0 Reorder the terms: 15 + 135t + -16t2 = 0 Solving 15 + 135t + -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'. -0.9375 + -8.4375t + t2 = 0 Move the constant term to the right: Add '0.9375' to each side of the equation. -0.9375 + -8.4375t + 0.9375 + t2 = 0 + 0.9375 Reorder the terms: -0.9375 + 0.9375 + -8.4375t + t2 = 0 + 0.9375 Combine like terms: -0.9375 + 0.9375 = 0.0000 0.0000 + -8.4375t + t2 = 0 + 0.9375 -8.4375t + t2 = 0 + 0.9375 Combine like terms: 0 + 0.9375 = 0.9375 -8.4375t + t2 = 0.9375 The t term is -8.4375t. Take half its coefficient (-4.21875). Square it (17.79785156) and add it to both sides. Add '17.79785156' to each side of the equation. -8.4375t + 17.79785156 + t2 = 0.9375 + 17.79785156 Reorder the terms: 17.79785156 + -8.4375t + t2 = 0.9375 + 17.79785156 Combine like terms: 0.9375 + 17.79785156 = 18.73535156 17.79785156 + -8.4375t + t2 = 18.73535156 Factor a perfect square on the left side: (t + -4.21875)(t + -4.21875) = 18.73535156 Calculate the square root of the right side: 4.328435232 Break this problem into two subproblems by setting (t + -4.21875) equal to 4.328435232 and -4.328435232.Subproblem 1
t + -4.21875 = 4.328435232 Simplifying t + -4.21875 = 4.328435232 Reorder the terms: -4.21875 + t = 4.328435232 Solving -4.21875 + t = 4.328435232 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '4.21875' to each side of the equation. -4.21875 + 4.21875 + t = 4.328435232 + 4.21875 Combine like terms: -4.21875 + 4.21875 = 0.00000 0.00000 + t = 4.328435232 + 4.21875 t = 4.328435232 + 4.21875 Combine like terms: 4.328435232 + 4.21875 = 8.547185232 t = 8.547185232 Simplifying t = 8.547185232Subproblem 2
t + -4.21875 = -4.328435232 Simplifying t + -4.21875 = -4.328435232 Reorder the terms: -4.21875 + t = -4.328435232 Solving -4.21875 + t = -4.328435232 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '4.21875' to each side of the equation. -4.21875 + 4.21875 + t = -4.328435232 + 4.21875 Combine like terms: -4.21875 + 4.21875 = 0.00000 0.00000 + t = -4.328435232 + 4.21875 t = -4.328435232 + 4.21875 Combine like terms: -4.328435232 + 4.21875 = -0.109685232 t = -0.109685232 Simplifying t = -0.109685232Solution
The solution to the problem is based on the solutions from the subproblems. t = {8.547185232, -0.109685232}
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