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Simplifying 0 = 16t2 + 12t + 40 Reorder the terms: 0 = 40 + 12t + 16t2 Solving 0 = 40 + 12t + 16t2 Solving for variable 't'. Combine like terms: 0 + -40 = -40 -40 + -12t + -16t2 = 40 + 12t + 16t2 + -40 + -12t + -16t2 Reorder the terms: -40 + -12t + -16t2 = 40 + -40 + 12t + -12t + 16t2 + -16t2 Combine like terms: 40 + -40 = 0 -40 + -12t + -16t2 = 0 + 12t + -12t + 16t2 + -16t2 -40 + -12t + -16t2 = 12t + -12t + 16t2 + -16t2 Combine like terms: 12t + -12t = 0 -40 + -12t + -16t2 = 0 + 16t2 + -16t2 -40 + -12t + -16t2 = 16t2 + -16t2 Combine like terms: 16t2 + -16t2 = 0 -40 + -12t + -16t2 = 0 Factor out the Greatest Common Factor (GCF), '-4'. -4(10 + 3t + 4t2) = 0 Ignore the factor -4.Subproblem 1
Set the factor '(10 + 3t + 4t2)' equal to zero and attempt to solve: Simplifying 10 + 3t + 4t2 = 0 Solving 10 + 3t + 4t2 = 0 Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. 2.5 + 0.75t + t2 = 0 Move the constant term to the right: Add '-2.5' to each side of the equation. 2.5 + 0.75t + -2.5 + t2 = 0 + -2.5 Reorder the terms: 2.5 + -2.5 + 0.75t + t2 = 0 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + 0.75t + t2 = 0 + -2.5 0.75t + t2 = 0 + -2.5 Combine like terms: 0 + -2.5 = -2.5 0.75t + t2 = -2.5 The t term is 0.75t. Take half its coefficient (0.375). Square it (0.140625) and add it to both sides. Add '0.140625' to each side of the equation. 0.75t + 0.140625 + t2 = -2.5 + 0.140625 Reorder the terms: 0.140625 + 0.75t + t2 = -2.5 + 0.140625 Combine like terms: -2.5 + 0.140625 = -2.359375 0.140625 + 0.75t + t2 = -2.359375 Factor a perfect square on the left side: (t + 0.375)(t + 0.375) = -2.359375 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
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