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Simplifying 0(t) = -16t2 + 80t + 4 Anything times zero is zero. 0t = -16t2 + 80t + 4 Reorder the terms: 0 = 4 + 80t + -16t2 Solving 0 = 4 + 80t + -16t2 Solving for variable 't'. Combine like terms: 0 + -4 = -4 -4 + -80t + 16t2 = 4 + 80t + -16t2 + -4 + -80t + 16t2 Reorder the terms: -4 + -80t + 16t2 = 4 + -4 + 80t + -80t + -16t2 + 16t2 Combine like terms: 4 + -4 = 0 -4 + -80t + 16t2 = 0 + 80t + -80t + -16t2 + 16t2 -4 + -80t + 16t2 = 80t + -80t + -16t2 + 16t2 Combine like terms: 80t + -80t = 0 -4 + -80t + 16t2 = 0 + -16t2 + 16t2 -4 + -80t + 16t2 = -16t2 + 16t2 Combine like terms: -16t2 + 16t2 = 0 -4 + -80t + 16t2 = 0 Factor out the Greatest Common Factor (GCF), '4'. 4(-1 + -20t + 4t2) = 0 Ignore the factor 4.Subproblem 1
Set the factor '(-1 + -20t + 4t2)' equal to zero and attempt to solve: Simplifying -1 + -20t + 4t2 = 0 Solving -1 + -20t + 4t2 = 0 Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. -0.25 + -5t + t2 = 0 Move the constant term to the right: Add '0.25' to each side of the equation. -0.25 + -5t + 0.25 + t2 = 0 + 0.25 Reorder the terms: -0.25 + 0.25 + -5t + t2 = 0 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + -5t + t2 = 0 + 0.25 -5t + t2 = 0 + 0.25 Combine like terms: 0 + 0.25 = 0.25 -5t + t2 = 0.25 The t term is -5t. Take half its coefficient (-2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. -5t + 6.25 + t2 = 0.25 + 6.25 Reorder the terms: 6.25 + -5t + t2 = 0.25 + 6.25 Combine like terms: 0.25 + 6.25 = 6.5 6.25 + -5t + t2 = 6.5 Factor a perfect square on the left side: (t + -2.5)(t + -2.5) = 6.5 Calculate the square root of the right side: 2.549509757 Break this problem into two subproblems by setting (t + -2.5) equal to 2.549509757 and -2.549509757.Subproblem 1
t + -2.5 = 2.549509757 Simplifying t + -2.5 = 2.549509757 Reorder the terms: -2.5 + t = 2.549509757 Solving -2.5 + t = 2.549509757 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + t = 2.549509757 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + t = 2.549509757 + 2.5 t = 2.549509757 + 2.5 Combine like terms: 2.549509757 + 2.5 = 5.049509757 t = 5.049509757 Simplifying t = 5.049509757Subproblem 2
t + -2.5 = -2.549509757 Simplifying t + -2.5 = -2.549509757 Reorder the terms: -2.5 + t = -2.549509757 Solving -2.5 + t = -2.549509757 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + t = -2.549509757 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + t = -2.549509757 + 2.5 t = -2.549509757 + 2.5 Combine like terms: -2.549509757 + 2.5 = -0.049509757 t = -0.049509757 Simplifying t = -0.049509757Solution
The solution to the problem is based on the solutions from the subproblems. t = {5.049509757, -0.049509757}Solution
t = {5.049509757, -0.049509757}
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