-18u^2-3u+120=

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Solution for -18u^2-3u+120= equation:


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 = 2.5

Subproblem 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 = -2.666666667

Solution

u = {2.5, -2.666666667}

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