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Simplifying u4 = (-2) * u2 + -1 Reorder the terms: u4 = -1 + -2u2 Solving u4 = -1 + -2u2 Solving for variable 'u'. Reorder the terms: 1 + 2u2 + u4 = -1 + -2u2 + 1 + 2u2 Reorder the terms: 1 + 2u2 + u4 = -1 + 1 + -2u2 + 2u2 Combine like terms: -1 + 1 = 0 1 + 2u2 + u4 = 0 + -2u2 + 2u2 1 + 2u2 + u4 = -2u2 + 2u2 Combine like terms: -2u2 + 2u2 = 0 1 + 2u2 + u4 = 0 Factor a trinomial. (1 + u2)(1 + u2) = 0Subproblem 1
Set the factor '(1 + u2)' equal to zero and attempt to solve: Simplifying 1 + u2 = 0 Solving 1 + u2 = 0 Move all terms containing u to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + u2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + u2 = 0 + -1 u2 = 0 + -1 Combine like terms: 0 + -1 = -1 u2 = -1 Simplifying u2 = -1 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.Subproblem 2
Set the factor '(1 + u2)' equal to zero and attempt to solve: Simplifying 1 + u2 = 0 Solving 1 + u2 = 0 Move all terms containing u to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + u2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + u2 = 0 + -1 u2 = 0 + -1 Combine like terms: 0 + -1 = -1 u2 = -1 Simplifying u2 = -1 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
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