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Simplifying 4u2 = 28u Solving 4u2 = 28u Solving for variable 'u'. Reorder the terms: -28u + 4u2 = 28u + -28u Combine like terms: 28u + -28u = 0 -28u + 4u2 = 0 Factor out the Greatest Common Factor (GCF), '4u'. 4u(-7 + u) = 0 Ignore the factor 4.Subproblem 1
Set the factor 'u' equal to zero and attempt to solve: Simplifying u = 0 Solving u = 0 Move all terms containing u to the left, all other terms to the right. Simplifying u = 0Subproblem 2
Set the factor '(-7 + u)' equal to zero and attempt to solve: Simplifying -7 + u = 0 Solving -7 + u = 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 + u = 0 + 7 Combine like terms: -7 + 7 = 0 0 + u = 0 + 7 u = 0 + 7 Combine like terms: 0 + 7 = 7 u = 7 Simplifying u = 7Solution
u = {0, 7}
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