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Simplifying 21m2 + -15m = 0 Reorder the terms: -15m + 21m2 = 0 Solving -15m + 21m2 = 0 Solving for variable 'm'. Factor out the Greatest Common Factor (GCF), '3m'. 3m(-5 + 7m) = 0 Ignore the factor 3.Subproblem 1
Set the factor 'm' equal to zero and attempt to solve: Simplifying m = 0 Solving m = 0 Move all terms containing m to the left, all other terms to the right. Simplifying m = 0Subproblem 2
Set the factor '(-5 + 7m)' equal to zero and attempt to solve: Simplifying -5 + 7m = 0 Solving -5 + 7m = 0 Move all terms containing m to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + 7m = 0 + 5 Combine like terms: -5 + 5 = 0 0 + 7m = 0 + 5 7m = 0 + 5 Combine like terms: 0 + 5 = 5 7m = 5 Divide each side by '7'. m = 0.7142857143 Simplifying m = 0.7142857143Solution
m = {0, 0.7142857143}
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