242r-18r^3=0

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Solution for 242r-18r^3=0 equation:


Simplifying
242r + -18r3 = 0

Solving
242r + -18r3 = 0

Solving for variable 'r'.

Factor out the Greatest Common Factor (GCF), '2r'.
2r(121 + -9r2) = 0

Factor a difference between two squares.
2r((11 + 3r)(11 + -3r)) = 0

Ignore the factor 2.

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 = 0

Subproblem 2

Set the factor '(11 + 3r)' equal to zero and attempt to solve: Simplifying 11 + 3r = 0 Solving 11 + 3r = 0 Move all terms containing r to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + 3r = 0 + -11 Combine like terms: 11 + -11 = 0 0 + 3r = 0 + -11 3r = 0 + -11 Combine like terms: 0 + -11 = -11 3r = -11 Divide each side by '3'. r = -3.666666667 Simplifying r = -3.666666667

Subproblem 3

Set the factor '(11 + -3r)' equal to zero and attempt to solve: Simplifying 11 + -3r = 0 Solving 11 + -3r = 0 Move all terms containing r to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + -3r = 0 + -11 Combine like terms: 11 + -11 = 0 0 + -3r = 0 + -11 -3r = 0 + -11 Combine like terms: 0 + -11 = -11 -3r = -11 Divide each side by '-3'. r = 3.666666667 Simplifying r = 3.666666667

Solution

r = {0, -3.666666667, 3.666666667}

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