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Simplifying 42r + -14r3 = 0 Solving 42r + -14r3 = 0 Solving for variable 'r'. Factor out the Greatest Common Factor (GCF), '14r'. 14r(3 + -1r2) = 0 Ignore the factor 14.Subproblem 1
Set the factor 'r' equal to zero and attempt to solve: Simplifying r = 0 Solving r = 0 Move all terms containing r to the left, all other terms to the right. Simplifying r = 0Subproblem 2
Set the factor '(3 + -1r2)' equal to zero and attempt to solve: Simplifying 3 + -1r2 = 0 Solving 3 + -1r2 = 0 Move all terms containing r to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1r2 = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1r2 = 0 + -3 -1r2 = 0 + -3 Combine like terms: 0 + -3 = -3 -1r2 = -3 Divide each side by '-1'. r2 = 3 Simplifying r2 = 3 Take the square root of each side: r = {-1.732050808, 1.732050808}Solution
r = {0, -1.732050808, 1.732050808}
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