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Simplifying 0 = -16t2 + 45t + 2 Reorder the terms: 0 = 2 + 45t + -16t2 Solving 0 = 2 + 45t + -16t2 Solving for variable 't'. Combine like terms: 0 + -2 = -2 -2 + -45t + 16t2 = 2 + 45t + -16t2 + -2 + -45t + 16t2 Reorder the terms: -2 + -45t + 16t2 = 2 + -2 + 45t + -45t + -16t2 + 16t2 Combine like terms: 2 + -2 = 0 -2 + -45t + 16t2 = 0 + 45t + -45t + -16t2 + 16t2 -2 + -45t + 16t2 = 45t + -45t + -16t2 + 16t2 Combine like terms: 45t + -45t = 0 -2 + -45t + 16t2 = 0 + -16t2 + 16t2 -2 + -45t + 16t2 = -16t2 + 16t2 Combine like terms: -16t2 + 16t2 = 0 -2 + -45t + 16t2 = 0 Begin completing the square. Divide all terms by 16 the coefficient of the squared term: Divide each side by '16'. -0.125 + -2.8125t + t2 = 0 Move the constant term to the right: Add '0.125' to each side of the equation. -0.125 + -2.8125t + 0.125 + t2 = 0 + 0.125 Reorder the terms: -0.125 + 0.125 + -2.8125t + t2 = 0 + 0.125 Combine like terms: -0.125 + 0.125 = 0.000 0.000 + -2.8125t + t2 = 0 + 0.125 -2.8125t + t2 = 0 + 0.125 Combine like terms: 0 + 0.125 = 0.125 -2.8125t + t2 = 0.125 The t term is -2.8125t. Take half its coefficient (-1.40625). Square it (1.977539063) and add it to both sides. Add '1.977539063' to each side of the equation. -2.8125t + 1.977539063 + t2 = 0.125 + 1.977539063 Reorder the terms: 1.977539063 + -2.8125t + t2 = 0.125 + 1.977539063 Combine like terms: 0.125 + 1.977539063 = 2.102539063 1.977539063 + -2.8125t + t2 = 2.102539063 Factor a perfect square on the left side: (t + -1.40625)(t + -1.40625) = 2.102539063 Calculate the square root of the right side: 1.45001347 Break this problem into two subproblems by setting (t + -1.40625) equal to 1.45001347 and -1.45001347.Subproblem 1
t + -1.40625 = 1.45001347 Simplifying t + -1.40625 = 1.45001347 Reorder the terms: -1.40625 + t = 1.45001347 Solving -1.40625 + t = 1.45001347 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.40625' to each side of the equation. -1.40625 + 1.40625 + t = 1.45001347 + 1.40625 Combine like terms: -1.40625 + 1.40625 = 0.00000 0.00000 + t = 1.45001347 + 1.40625 t = 1.45001347 + 1.40625 Combine like terms: 1.45001347 + 1.40625 = 2.85626347 t = 2.85626347 Simplifying t = 2.85626347Subproblem 2
t + -1.40625 = -1.45001347 Simplifying t + -1.40625 = -1.45001347 Reorder the terms: -1.40625 + t = -1.45001347 Solving -1.40625 + t = -1.45001347 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.40625' to each side of the equation. -1.40625 + 1.40625 + t = -1.45001347 + 1.40625 Combine like terms: -1.40625 + 1.40625 = 0.00000 0.00000 + t = -1.45001347 + 1.40625 t = -1.45001347 + 1.40625 Combine like terms: -1.45001347 + 1.40625 = -0.04376347 t = -0.04376347 Simplifying t = -0.04376347Solution
The solution to the problem is based on the solutions from the subproblems. t = {2.85626347, -0.04376347}
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