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Simplifying 4 = -16t2 + -14t + 8 Reorder the terms: 4 = 8 + -14t + -16t2 Solving 4 = 8 + -14t + -16t2 Solving for variable 't'. Combine like terms: 4 + -8 = -4 -4 + 14t + 16t2 = 8 + -14t + -16t2 + -8 + 14t + 16t2 Reorder the terms: -4 + 14t + 16t2 = 8 + -8 + -14t + 14t + -16t2 + 16t2 Combine like terms: 8 + -8 = 0 -4 + 14t + 16t2 = 0 + -14t + 14t + -16t2 + 16t2 -4 + 14t + 16t2 = -14t + 14t + -16t2 + 16t2 Combine like terms: -14t + 14t = 0 -4 + 14t + 16t2 = 0 + -16t2 + 16t2 -4 + 14t + 16t2 = -16t2 + 16t2 Combine like terms: -16t2 + 16t2 = 0 -4 + 14t + 16t2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-2 + 7t + 8t2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-2 + 7t + 8t2)' equal to zero and attempt to solve: Simplifying -2 + 7t + 8t2 = 0 Solving -2 + 7t + 8t2 = 0 Begin completing the square. Divide all terms by 8 the coefficient of the squared term: Divide each side by '8'. -0.25 + 0.875t + t2 = 0 Move the constant term to the right: Add '0.25' to each side of the equation. -0.25 + 0.875t + 0.25 + t2 = 0 + 0.25 Reorder the terms: -0.25 + 0.25 + 0.875t + t2 = 0 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + 0.875t + t2 = 0 + 0.25 0.875t + t2 = 0 + 0.25 Combine like terms: 0 + 0.25 = 0.25 0.875t + t2 = 0.25 The t term is 0.875t. Take half its coefficient (0.4375). Square it (0.19140625) and add it to both sides. Add '0.19140625' to each side of the equation. 0.875t + 0.19140625 + t2 = 0.25 + 0.19140625 Reorder the terms: 0.19140625 + 0.875t + t2 = 0.25 + 0.19140625 Combine like terms: 0.25 + 0.19140625 = 0.44140625 0.19140625 + 0.875t + t2 = 0.44140625 Factor a perfect square on the left side: (t + 0.4375)(t + 0.4375) = 0.44140625 Calculate the square root of the right side: 0.664384113 Break this problem into two subproblems by setting (t + 0.4375) equal to 0.664384113 and -0.664384113.Subproblem 1
t + 0.4375 = 0.664384113 Simplifying t + 0.4375 = 0.664384113 Reorder the terms: 0.4375 + t = 0.664384113 Solving 0.4375 + t = 0.664384113 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.4375' to each side of the equation. 0.4375 + -0.4375 + t = 0.664384113 + -0.4375 Combine like terms: 0.4375 + -0.4375 = 0.0000 0.0000 + t = 0.664384113 + -0.4375 t = 0.664384113 + -0.4375 Combine like terms: 0.664384113 + -0.4375 = 0.226884113 t = 0.226884113 Simplifying t = 0.226884113Subproblem 2
t + 0.4375 = -0.664384113 Simplifying t + 0.4375 = -0.664384113 Reorder the terms: 0.4375 + t = -0.664384113 Solving 0.4375 + t = -0.664384113 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.4375' to each side of the equation. 0.4375 + -0.4375 + t = -0.664384113 + -0.4375 Combine like terms: 0.4375 + -0.4375 = 0.0000 0.0000 + t = -0.664384113 + -0.4375 t = -0.664384113 + -0.4375 Combine like terms: -0.664384113 + -0.4375 = -1.101884113 t = -1.101884113 Simplifying t = -1.101884113Solution
The solution to the problem is based on the solutions from the subproblems. t = {0.226884113, -1.101884113}Solution
t = {0.226884113, -1.101884113}
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