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Simplifying 2 = -1t2 + 8t Reorder the terms: 2 = 8t + -1t2 Solving 2 = 8t + -1t2 Solving for variable 't'. Reorder the terms: 2 + -8t + t2 = 8t + -8t + -1t2 + t2 Combine like terms: 8t + -8t = 0 2 + -8t + t2 = 0 + -1t2 + t2 2 + -8t + t2 = -1t2 + t2 Combine like terms: -1t2 + t2 = 0 2 + -8t + t2 = 0 Begin completing the square. Move the constant term to the right: Add '-2' to each side of the equation. 2 + -8t + -2 + t2 = 0 + -2 Reorder the terms: 2 + -2 + -8t + t2 = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -8t + t2 = 0 + -2 -8t + t2 = 0 + -2 Combine like terms: 0 + -2 = -2 -8t + t2 = -2 The t term is -8t. Take half its coefficient (-4). Square it (16) and add it to both sides. Add '16' to each side of the equation. -8t + 16 + t2 = -2 + 16 Reorder the terms: 16 + -8t + t2 = -2 + 16 Combine like terms: -2 + 16 = 14 16 + -8t + t2 = 14 Factor a perfect square on the left side: (t + -4)(t + -4) = 14 Calculate the square root of the right side: 3.741657387 Break this problem into two subproblems by setting (t + -4) equal to 3.741657387 and -3.741657387.Subproblem 1
t + -4 = 3.741657387 Simplifying t + -4 = 3.741657387 Reorder the terms: -4 + t = 3.741657387 Solving -4 + t = 3.741657387 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + t = 3.741657387 + 4 Combine like terms: -4 + 4 = 0 0 + t = 3.741657387 + 4 t = 3.741657387 + 4 Combine like terms: 3.741657387 + 4 = 7.741657387 t = 7.741657387 Simplifying t = 7.741657387Subproblem 2
t + -4 = -3.741657387 Simplifying t + -4 = -3.741657387 Reorder the terms: -4 + t = -3.741657387 Solving -4 + t = -3.741657387 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + t = -3.741657387 + 4 Combine like terms: -4 + 4 = 0 0 + t = -3.741657387 + 4 t = -3.741657387 + 4 Combine like terms: -3.741657387 + 4 = 0.258342613 t = 0.258342613 Simplifying t = 0.258342613Solution
The solution to the problem is based on the solutions from the subproblems. t = {7.741657387, 0.258342613}
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