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Simplifying 2t2 = 7t + 15 Reorder the terms: 2t2 = 15 + 7t Solving 2t2 = 15 + 7t Solving for variable 't'. Reorder the terms: -15 + -7t + 2t2 = 15 + 7t + -15 + -7t Reorder the terms: -15 + -7t + 2t2 = 15 + -15 + 7t + -7t Combine like terms: 15 + -15 = 0 -15 + -7t + 2t2 = 0 + 7t + -7t -15 + -7t + 2t2 = 7t + -7t Combine like terms: 7t + -7t = 0 -15 + -7t + 2t2 = 0 Factor a trinomial. (-3 + -2t)(5 + -1t) = 0Subproblem 1
Set the factor '(-3 + -2t)' equal to zero and attempt to solve: Simplifying -3 + -2t = 0 Solving -3 + -2t = 0 Move all terms containing t to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -2t = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -2t = 0 + 3 -2t = 0 + 3 Combine like terms: 0 + 3 = 3 -2t = 3 Divide each side by '-2'. t = -1.5 Simplifying t = -1.5Subproblem 2
Set the factor '(5 + -1t)' equal to zero and attempt to solve: Simplifying 5 + -1t = 0 Solving 5 + -1t = 0 Move all terms containing t to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1t = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1t = 0 + -5 -1t = 0 + -5 Combine like terms: 0 + -5 = -5 -1t = -5 Divide each side by '-1'. t = 5 Simplifying t = 5Solution
t = {-1.5, 5}
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