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Simplifying 4 = -16t2 + 15t + 6 Reorder the terms: 4 = 6 + 15t + -16t2 Solving 4 = 6 + 15t + -16t2 Solving for variable 't'. Combine like terms: 4 + -6 = -2 -2 + -15t + 16t2 = 6 + 15t + -16t2 + -6 + -15t + 16t2 Reorder the terms: -2 + -15t + 16t2 = 6 + -6 + 15t + -15t + -16t2 + 16t2 Combine like terms: 6 + -6 = 0 -2 + -15t + 16t2 = 0 + 15t + -15t + -16t2 + 16t2 -2 + -15t + 16t2 = 15t + -15t + -16t2 + 16t2 Combine like terms: 15t + -15t = 0 -2 + -15t + 16t2 = 0 + -16t2 + 16t2 -2 + -15t + 16t2 = -16t2 + 16t2 Combine like terms: -16t2 + 16t2 = 0 -2 + -15t + 16t2 = 0 Begin completing the square. Divide all terms by 16 the coefficient of the squared term: Divide each side by '16'. -0.125 + -0.9375t + t2 = 0 Move the constant term to the right: Add '0.125' to each side of the equation. -0.125 + -0.9375t + 0.125 + t2 = 0 + 0.125 Reorder the terms: -0.125 + 0.125 + -0.9375t + t2 = 0 + 0.125 Combine like terms: -0.125 + 0.125 = 0.000 0.000 + -0.9375t + t2 = 0 + 0.125 -0.9375t + t2 = 0 + 0.125 Combine like terms: 0 + 0.125 = 0.125 -0.9375t + t2 = 0.125 The t term is -0.9375t. Take half its coefficient (-0.46875). Square it (0.2197265625) and add it to both sides. Add '0.2197265625' to each side of the equation. -0.9375t + 0.2197265625 + t2 = 0.125 + 0.2197265625 Reorder the terms: 0.2197265625 + -0.9375t + t2 = 0.125 + 0.2197265625 Combine like terms: 0.125 + 0.2197265625 = 0.3447265625 0.2197265625 + -0.9375t + t2 = 0.3447265625 Factor a perfect square on the left side: (t + -0.46875)(t + -0.46875) = 0.3447265625 Calculate the square root of the right side: 0.587134195 Break this problem into two subproblems by setting (t + -0.46875) equal to 0.587134195 and -0.587134195.Subproblem 1
t + -0.46875 = 0.587134195 Simplifying t + -0.46875 = 0.587134195 Reorder the terms: -0.46875 + t = 0.587134195 Solving -0.46875 + t = 0.587134195 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.46875' to each side of the equation. -0.46875 + 0.46875 + t = 0.587134195 + 0.46875 Combine like terms: -0.46875 + 0.46875 = 0.00000 0.00000 + t = 0.587134195 + 0.46875 t = 0.587134195 + 0.46875 Combine like terms: 0.587134195 + 0.46875 = 1.055884195 t = 1.055884195 Simplifying t = 1.055884195Subproblem 2
t + -0.46875 = -0.587134195 Simplifying t + -0.46875 = -0.587134195 Reorder the terms: -0.46875 + t = -0.587134195 Solving -0.46875 + t = -0.587134195 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.46875' to each side of the equation. -0.46875 + 0.46875 + t = -0.587134195 + 0.46875 Combine like terms: -0.46875 + 0.46875 = 0.00000 0.00000 + t = -0.587134195 + 0.46875 t = -0.587134195 + 0.46875 Combine like terms: -0.587134195 + 0.46875 = -0.118384195 t = -0.118384195 Simplifying t = -0.118384195Solution
The solution to the problem is based on the solutions from the subproblems. t = {1.055884195, -0.118384195}
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