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Simplifying 21u2 + -24u + 14u + -16 = 0 Reorder the terms: -16 + -24u + 14u + 21u2 = 0 Combine like terms: -24u + 14u = -10u -16 + -10u + 21u2 = 0 Solving -16 + -10u + 21u2 = 0 Solving for variable 'u'. Factor a trinomial. (-2 + -3u)(8 + -7u) = 0Subproblem 1
Set the factor '(-2 + -3u)' equal to zero and attempt to solve: Simplifying -2 + -3u = 0 Solving -2 + -3u = 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 + -3u = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -3u = 0 + 2 -3u = 0 + 2 Combine like terms: 0 + 2 = 2 -3u = 2 Divide each side by '-3'. u = -0.6666666667 Simplifying u = -0.6666666667Subproblem 2
Set the factor '(8 + -7u)' equal to zero and attempt to solve: Simplifying 8 + -7u = 0 Solving 8 + -7u = 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 + -7u = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -7u = 0 + -8 -7u = 0 + -8 Combine like terms: 0 + -8 = -8 -7u = -8 Divide each side by '-7'. u = 1.142857143 Simplifying u = 1.142857143Solution
u = {-0.6666666667, 1.142857143}
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