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Simplifying 10r2 = 24 + 22r Solving 10r2 = 24 + 22r Solving for variable 'r'. Reorder the terms: -24 + -22r + 10r2 = 24 + 22r + -24 + -22r Reorder the terms: -24 + -22r + 10r2 = 24 + -24 + 22r + -22r Combine like terms: 24 + -24 = 0 -24 + -22r + 10r2 = 0 + 22r + -22r -24 + -22r + 10r2 = 22r + -22r Combine like terms: 22r + -22r = 0 -24 + -22r + 10r2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-12 + -11r + 5r2) = 0 Factor a trinomial. 2((-4 + -5r)(3 + -1r)) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-4 + -5r)' equal to zero and attempt to solve: Simplifying -4 + -5r = 0 Solving -4 + -5r = 0 Move all terms containing r to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -5r = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -5r = 0 + 4 -5r = 0 + 4 Combine like terms: 0 + 4 = 4 -5r = 4 Divide each side by '-5'. r = -0.8 Simplifying r = -0.8Subproblem 2
Set the factor '(3 + -1r)' equal to zero and attempt to solve: Simplifying 3 + -1r = 0 Solving 3 + -1r = 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 + -1r = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1r = 0 + -3 -1r = 0 + -3 Combine like terms: 0 + -3 = -3 -1r = -3 Divide each side by '-1'. r = 3 Simplifying r = 3Solution
r = {-0.8, 3}
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