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Simplifying 3t2 + -9t = 30 Reorder the terms: -9t + 3t2 = 30 Solving -9t + 3t2 = 30 Solving for variable 't'. Reorder the terms: -30 + -9t + 3t2 = 30 + -30 Combine like terms: 30 + -30 = 0 -30 + -9t + 3t2 = 0 Factor out the Greatest Common Factor (GCF), '3'. 3(-10 + -3t + t2) = 0 Factor a trinomial. 3((-2 + -1t)(5 + -1t)) = 0 Ignore the factor 3.Subproblem 1
Set the factor '(-2 + -1t)' equal to zero and attempt to solve: Simplifying -2 + -1t = 0 Solving -2 + -1t = 0 Move all terms containing t to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1t = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1t = 0 + 2 -1t = 0 + 2 Combine like terms: 0 + 2 = 2 -1t = 2 Divide each side by '-1'. t = -2 Simplifying t = -2Subproblem 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 = {-2, 5}
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