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Simplifying 25r2 + 60r + 36 = 0 Reorder the terms: 36 + 60r + 25r2 = 0 Solving 36 + 60r + 25r2 = 0 Solving for variable 'r'. Factor a trinomial. (6 + 5r)(6 + 5r) = 0Subproblem 1
Set the factor '(6 + 5r)' equal to zero and attempt to solve: Simplifying 6 + 5r = 0 Solving 6 + 5r = 0 Move all terms containing r to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + 5r = 0 + -6 Combine like terms: 6 + -6 = 0 0 + 5r = 0 + -6 5r = 0 + -6 Combine like terms: 0 + -6 = -6 5r = -6 Divide each side by '5'. r = -1.2 Simplifying r = -1.2Subproblem 2
Set the factor '(6 + 5r)' equal to zero and attempt to solve: Simplifying 6 + 5r = 0 Solving 6 + 5r = 0 Move all terms containing r to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + 5r = 0 + -6 Combine like terms: 6 + -6 = 0 0 + 5r = 0 + -6 5r = 0 + -6 Combine like terms: 0 + -6 = -6 5r = -6 Divide each side by '5'. r = -1.2 Simplifying r = -1.2Solution
r = {-1.2, -1.2}
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