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Simplifying 0 = -16t2 + 76t + 12 Reorder the terms: 0 = 12 + 76t + -16t2 Solving 0 = 12 + 76t + -16t2 Solving for variable 't'. Combine like terms: 0 + -12 = -12 -12 + -76t + 16t2 = 12 + 76t + -16t2 + -12 + -76t + 16t2 Reorder the terms: -12 + -76t + 16t2 = 12 + -12 + 76t + -76t + -16t2 + 16t2 Combine like terms: 12 + -12 = 0 -12 + -76t + 16t2 = 0 + 76t + -76t + -16t2 + 16t2 -12 + -76t + 16t2 = 76t + -76t + -16t2 + 16t2 Combine like terms: 76t + -76t = 0 -12 + -76t + 16t2 = 0 + -16t2 + 16t2 -12 + -76t + 16t2 = -16t2 + 16t2 Combine like terms: -16t2 + 16t2 = 0 -12 + -76t + 16t2 = 0 Factor out the Greatest Common Factor (GCF), '4'. 4(-3 + -19t + 4t2) = 0 Ignore the factor 4.Subproblem 1
Set the factor '(-3 + -19t + 4t2)' equal to zero and attempt to solve: Simplifying -3 + -19t + 4t2 = 0 Solving -3 + -19t + 4t2 = 0 Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. -0.75 + -4.75t + t2 = 0 Move the constant term to the right: Add '0.75' to each side of the equation. -0.75 + -4.75t + 0.75 + t2 = 0 + 0.75 Reorder the terms: -0.75 + 0.75 + -4.75t + t2 = 0 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + -4.75t + t2 = 0 + 0.75 -4.75t + t2 = 0 + 0.75 Combine like terms: 0 + 0.75 = 0.75 -4.75t + t2 = 0.75 The t term is -4.75t. Take half its coefficient (-2.375). Square it (5.640625) and add it to both sides. Add '5.640625' to each side of the equation. -4.75t + 5.640625 + t2 = 0.75 + 5.640625 Reorder the terms: 5.640625 + -4.75t + t2 = 0.75 + 5.640625 Combine like terms: 0.75 + 5.640625 = 6.390625 5.640625 + -4.75t + t2 = 6.390625 Factor a perfect square on the left side: (t + -2.375)(t + -2.375) = 6.390625 Calculate the square root of the right side: 2.527968552 Break this problem into two subproblems by setting (t + -2.375) equal to 2.527968552 and -2.527968552.Subproblem 1
t + -2.375 = 2.527968552 Simplifying t + -2.375 = 2.527968552 Reorder the terms: -2.375 + t = 2.527968552 Solving -2.375 + t = 2.527968552 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.375' to each side of the equation. -2.375 + 2.375 + t = 2.527968552 + 2.375 Combine like terms: -2.375 + 2.375 = 0.000 0.000 + t = 2.527968552 + 2.375 t = 2.527968552 + 2.375 Combine like terms: 2.527968552 + 2.375 = 4.902968552 t = 4.902968552 Simplifying t = 4.902968552Subproblem 2
t + -2.375 = -2.527968552 Simplifying t + -2.375 = -2.527968552 Reorder the terms: -2.375 + t = -2.527968552 Solving -2.375 + t = -2.527968552 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.375' to each side of the equation. -2.375 + 2.375 + t = -2.527968552 + 2.375 Combine like terms: -2.375 + 2.375 = 0.000 0.000 + t = -2.527968552 + 2.375 t = -2.527968552 + 2.375 Combine like terms: -2.527968552 + 2.375 = -0.152968552 t = -0.152968552 Simplifying t = -0.152968552Solution
The solution to the problem is based on the solutions from the subproblems. t = {4.902968552, -0.152968552}Solution
t = {4.902968552, -0.152968552}
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