25r^3-9r=0

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Solution for 25r^3-9r=0 equation:


Simplifying
25r3 + -9r = 0

Reorder the terms:
-9r + 25r3 = 0

Solving
-9r + 25r3 = 0

Solving for variable 'r'.

Factor out the Greatest Common Factor (GCF), 'r'.
r(-9 + 25r2) = 0

Factor a difference between two squares.
r((3 + 5r)(-3 + 5r)) = 0

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 '(3 + 5r)' equal to zero and attempt to solve: Simplifying 3 + 5r = 0 Solving 3 + 5r = 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 + 5r = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 5r = 0 + -3 5r = 0 + -3 Combine like terms: 0 + -3 = -3 5r = -3 Divide each side by '5'. r = -0.6 Simplifying r = -0.6

Subproblem 3

Set the factor '(-3 + 5r)' equal to zero and attempt to solve: Simplifying -3 + 5r = 0 Solving -3 + 5r = 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 + 5r = 0 + 3 Combine like terms: -3 + 3 = 0 0 + 5r = 0 + 3 5r = 0 + 3 Combine like terms: 0 + 3 = 3 5r = 3 Divide each side by '5'. r = 0.6 Simplifying r = 0.6

Solution

r = {0, -0.6, 0.6}

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