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Simplifying -7n(5n + -9) = 0 Reorder the terms: -7n(-9 + 5n) = 0 (-9 * -7n + 5n * -7n) = 0 (63n + -35n2) = 0 Solving 63n + -35n2 = 0 Solving for variable 'n'. Factor out the Greatest Common Factor (GCF), '7n'. 7n(9 + -5n) = 0 Ignore the factor 7.Subproblem 1
Set the factor 'n' equal to zero and attempt to solve: Simplifying n = 0 Solving n = 0 Move all terms containing n to the left, all other terms to the right. Simplifying n = 0Subproblem 2
Set the factor '(9 + -5n)' equal to zero and attempt to solve: Simplifying 9 + -5n = 0 Solving 9 + -5n = 0 Move all terms containing n to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -5n = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -5n = 0 + -9 -5n = 0 + -9 Combine like terms: 0 + -9 = -9 -5n = -9 Divide each side by '-5'. n = 1.8 Simplifying n = 1.8Solution
n = {0, 1.8}
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