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Simplifying 7t2 + -31t + -20 = 0 Reorder the terms: -20 + -31t + 7t2 = 0 Solving -20 + -31t + 7t2 = 0 Solving for variable 't'. Factor a trinomial. (-4 + -7t)(5 + -1t) = 0Subproblem 1
Set the factor '(-4 + -7t)' equal to zero and attempt to solve: Simplifying -4 + -7t = 0 Solving -4 + -7t = 0 Move all terms containing t to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -7t = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -7t = 0 + 4 -7t = 0 + 4 Combine like terms: 0 + 4 = 4 -7t = 4 Divide each side by '-7'. t = -0.5714285714 Simplifying t = -0.5714285714Subproblem 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 = {-0.5714285714, 5}
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