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Simplifying 0 = -16t2 + 40t + 1 Reorder the terms: 0 = 1 + 40t + -16t2 Solving 0 = 1 + 40t + -16t2 Solving for variable 't'. Combine like terms: 0 + -1 = -1 -1 + -40t + 16t2 = 1 + 40t + -16t2 + -1 + -40t + 16t2 Reorder the terms: -1 + -40t + 16t2 = 1 + -1 + 40t + -40t + -16t2 + 16t2 Combine like terms: 1 + -1 = 0 -1 + -40t + 16t2 = 0 + 40t + -40t + -16t2 + 16t2 -1 + -40t + 16t2 = 40t + -40t + -16t2 + 16t2 Combine like terms: 40t + -40t = 0 -1 + -40t + 16t2 = 0 + -16t2 + 16t2 -1 + -40t + 16t2 = -16t2 + 16t2 Combine like terms: -16t2 + 16t2 = 0 -1 + -40t + 16t2 = 0 Begin completing the square. Divide all terms by 16 the coefficient of the squared term: Divide each side by '16'. -0.0625 + -2.5t + t2 = 0 Move the constant term to the right: Add '0.0625' to each side of the equation. -0.0625 + -2.5t + 0.0625 + t2 = 0 + 0.0625 Reorder the terms: -0.0625 + 0.0625 + -2.5t + t2 = 0 + 0.0625 Combine like terms: -0.0625 + 0.0625 = 0.0000 0.0000 + -2.5t + t2 = 0 + 0.0625 -2.5t + t2 = 0 + 0.0625 Combine like terms: 0 + 0.0625 = 0.0625 -2.5t + t2 = 0.0625 The t term is -2.5t. Take half its coefficient (-1.25). Square it (1.5625) and add it to both sides. Add '1.5625' to each side of the equation. -2.5t + 1.5625 + t2 = 0.0625 + 1.5625 Reorder the terms: 1.5625 + -2.5t + t2 = 0.0625 + 1.5625 Combine like terms: 0.0625 + 1.5625 = 1.625 1.5625 + -2.5t + t2 = 1.625 Factor a perfect square on the left side: (t + -1.25)(t + -1.25) = 1.625 Calculate the square root of the right side: 1.274754878 Break this problem into two subproblems by setting (t + -1.25) equal to 1.274754878 and -1.274754878.Subproblem 1
t + -1.25 = 1.274754878 Simplifying t + -1.25 = 1.274754878 Reorder the terms: -1.25 + t = 1.274754878 Solving -1.25 + t = 1.274754878 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.25' to each side of the equation. -1.25 + 1.25 + t = 1.274754878 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + t = 1.274754878 + 1.25 t = 1.274754878 + 1.25 Combine like terms: 1.274754878 + 1.25 = 2.524754878 t = 2.524754878 Simplifying t = 2.524754878Subproblem 2
t + -1.25 = -1.274754878 Simplifying t + -1.25 = -1.274754878 Reorder the terms: -1.25 + t = -1.274754878 Solving -1.25 + t = -1.274754878 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.25' to each side of the equation. -1.25 + 1.25 + t = -1.274754878 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + t = -1.274754878 + 1.25 t = -1.274754878 + 1.25 Combine like terms: -1.274754878 + 1.25 = -0.024754878 t = -0.024754878 Simplifying t = -0.024754878Solution
The solution to the problem is based on the solutions from the subproblems. t = {2.524754878, -0.024754878}
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