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Simplifying 0 = 35a + -21a2 Solving 0 = 35a + -21a2 Solving for variable 'a'. Remove the zero: -35a + 21a2 = 35a + -21a2 + -35a + 21a2 Reorder the terms: -35a + 21a2 = 35a + -35a + -21a2 + 21a2 Combine like terms: 35a + -35a = 0 -35a + 21a2 = 0 + -21a2 + 21a2 -35a + 21a2 = -21a2 + 21a2 Combine like terms: -21a2 + 21a2 = 0 -35a + 21a2 = 0 Factor out the Greatest Common Factor (GCF), '7a'. 7a(-5 + 3a) = 0 Ignore the factor 7.Subproblem 1
Set the factor 'a' equal to zero and attempt to solve: Simplifying a = 0 Solving a = 0 Move all terms containing a to the left, all other terms to the right. Simplifying a = 0Subproblem 2
Set the factor '(-5 + 3a)' equal to zero and attempt to solve: Simplifying -5 + 3a = 0 Solving -5 + 3a = 0 Move all terms containing a to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + 3a = 0 + 5 Combine like terms: -5 + 5 = 0 0 + 3a = 0 + 5 3a = 0 + 5 Combine like terms: 0 + 5 = 5 3a = 5 Divide each side by '3'. a = 1.666666667 Simplifying a = 1.666666667Solution
a = {0, 1.666666667}
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