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Simplifying (2r + 1)(12r2 + 5r + -3) = 0 Reorder the terms: (1 + 2r)(12r2 + 5r + -3) = 0 Reorder the terms: (1 + 2r)(-3 + 5r + 12r2) = 0 Multiply (1 + 2r) * (-3 + 5r + 12r2) (1(-3 + 5r + 12r2) + 2r * (-3 + 5r + 12r2)) = 0 ((-3 * 1 + 5r * 1 + 12r2 * 1) + 2r * (-3 + 5r + 12r2)) = 0 ((-3 + 5r + 12r2) + 2r * (-3 + 5r + 12r2)) = 0 (-3 + 5r + 12r2 + (-3 * 2r + 5r * 2r + 12r2 * 2r)) = 0 (-3 + 5r + 12r2 + (-6r + 10r2 + 24r3)) = 0 Reorder the terms: (-3 + 5r + -6r + 12r2 + 10r2 + 24r3) = 0 Combine like terms: 5r + -6r = -1r (-3 + -1r + 12r2 + 10r2 + 24r3) = 0 Combine like terms: 12r2 + 10r2 = 22r2 (-3 + -1r + 22r2 + 24r3) = 0 Solving -3 + -1r + 22r2 + 24r3 = 0 Solving for variable 'r'. The solution to this equation could not be determined.
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