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Simplifying (3r + -2)(r + 1) = 0 Reorder the terms: (-2 + 3r)(r + 1) = 0 Reorder the terms: (-2 + 3r)(1 + r) = 0 Multiply (-2 + 3r) * (1 + r) (-2(1 + r) + 3r * (1 + r)) = 0 ((1 * -2 + r * -2) + 3r * (1 + r)) = 0 ((-2 + -2r) + 3r * (1 + r)) = 0 (-2 + -2r + (1 * 3r + r * 3r)) = 0 (-2 + -2r + (3r + 3r2)) = 0 Combine like terms: -2r + 3r = 1r (-2 + 1r + 3r2) = 0 Solving -2 + 1r + 3r2 = 0 Solving for variable 'r'. Factor a trinomial. (-1 + -1r)(2 + -3r) = 0Subproblem 1
Set the factor '(-1 + -1r)' equal to zero and attempt to solve: Simplifying -1 + -1r = 0 Solving -1 + -1r = 0 Move all terms containing r to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -1r = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -1r = 0 + 1 -1r = 0 + 1 Combine like terms: 0 + 1 = 1 -1r = 1 Divide each side by '-1'. r = -1 Simplifying r = -1Subproblem 2
Set the factor '(2 + -3r)' equal to zero and attempt to solve: Simplifying 2 + -3r = 0 Solving 2 + -3r = 0 Move all terms containing r to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -3r = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -3r = 0 + -2 -3r = 0 + -2 Combine like terms: 0 + -2 = -2 -3r = -2 Divide each side by '-3'. r = 0.6666666667 Simplifying r = 0.6666666667Solution
r = {-1, 0.6666666667}
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