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Simplifying 448 = -16t2 + 72t + 448 Reorder the terms: 448 = 448 + 72t + -16t2 Add '-448' to each side of the equation. 448 + -448 = 448 + 72t + -448 + -16t2 Combine like terms: 448 + -448 = 0 0 = 448 + 72t + -448 + -16t2 Reorder the terms: 0 = 448 + -448 + 72t + -16t2 Combine like terms: 448 + -448 = 0 0 = 0 + 72t + -16t2 0 = 72t + -16t2 Solving 0 = 72t + -16t2 Solving for variable 't'. Remove the zero: -72t + 16t2 = 72t + -16t2 + -72t + 16t2 Reorder the terms: -72t + 16t2 = 72t + -72t + -16t2 + 16t2 Combine like terms: 72t + -72t = 0 -72t + 16t2 = 0 + -16t2 + 16t2 -72t + 16t2 = -16t2 + 16t2 Combine like terms: -16t2 + 16t2 = 0 -72t + 16t2 = 0 Factor out the Greatest Common Factor (GCF), '8t'. 8t(-9 + 2t) = 0 Ignore the factor 8.Subproblem 1
Set the factor 't' equal to zero and attempt to solve: Simplifying t = 0 Solving t = 0 Move all terms containing t to the left, all other terms to the right. Simplifying t = 0Subproblem 2
Set the factor '(-9 + 2t)' equal to zero and attempt to solve: Simplifying -9 + 2t = 0 Solving -9 + 2t = 0 Move all terms containing t to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + 2t = 0 + 9 Combine like terms: -9 + 9 = 0 0 + 2t = 0 + 9 2t = 0 + 9 Combine like terms: 0 + 9 = 9 2t = 9 Divide each side by '2'. t = 4.5 Simplifying t = 4.5Solution
t = {0, 4.5}
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