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Simplifying 2u2 + -3u + -13 + -1u2 + -2u + -1 = 0 Reorder the terms: -13 + -1 + -3u + -2u + 2u2 + -1u2 = 0 Combine like terms: -13 + -1 = -14 -14 + -3u + -2u + 2u2 + -1u2 = 0 Combine like terms: -3u + -2u = -5u -14 + -5u + 2u2 + -1u2 = 0 Combine like terms: 2u2 + -1u2 = 1u2 -14 + -5u + 1u2 = 0 Solving -14 + -5u + 1u2 = 0 Solving for variable 'u'. Factor a trinomial. (-2 + -1u)(7 + -1u) = 0Subproblem 1
Set the factor '(-2 + -1u)' equal to zero and attempt to solve: Simplifying -2 + -1u = 0 Solving -2 + -1u = 0 Move all terms containing u to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1u = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1u = 0 + 2 -1u = 0 + 2 Combine like terms: 0 + 2 = 2 -1u = 2 Divide each side by '-1'. u = -2 Simplifying u = -2Subproblem 2
Set the factor '(7 + -1u)' equal to zero and attempt to solve: Simplifying 7 + -1u = 0 Solving 7 + -1u = 0 Move all terms containing u to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1u = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1u = 0 + -7 -1u = 0 + -7 Combine like terms: 0 + -7 = -7 -1u = -7 Divide each side by '-1'. u = 7 Simplifying u = 7Solution
u = {-2, 7}
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