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Simplifying -18u2 + -3u + 120 = 0 Reorder the terms: 120 + -3u + -18u2 = 0 Solving 120 + -3u + -18u2 = 0 Solving for variable 'u'. Factor out the Greatest Common Factor (GCF), '3'. 3(40 + -1u + -6u2) = 0 Factor a trinomial. 3((5 + -2u)(8 + 3u)) = 0 Ignore the factor 3.Subproblem 1
Set the factor '(5 + -2u)' equal to zero and attempt to solve: Simplifying 5 + -2u = 0 Solving 5 + -2u = 0 Move all terms containing u to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -2u = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -2u = 0 + -5 -2u = 0 + -5 Combine like terms: 0 + -5 = -5 -2u = -5 Divide each side by '-2'. u = 2.5 Simplifying u = 2.5Subproblem 2
Set the factor '(8 + 3u)' equal to zero and attempt to solve: Simplifying 8 + 3u = 0 Solving 8 + 3u = 0 Move all terms containing u to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + 3u = 0 + -8 Combine like terms: 8 + -8 = 0 0 + 3u = 0 + -8 3u = 0 + -8 Combine like terms: 0 + -8 = -8 3u = -8 Divide each side by '3'. u = -2.666666667 Simplifying u = -2.666666667Solution
u = {2.5, -2.666666667}
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