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Simplifying (8r + -1s)(r2 + 9rs + -4s2) = 0 Reorder the terms: (8r + -1s)(9rs + r2 + -4s2) = 0 Multiply (8r + -1s) * (9rs + r2 + -4s2) (8r * (9rs + r2 + -4s2) + -1s * (9rs + r2 + -4s2)) = 0 ((9rs * 8r + r2 * 8r + -4s2 * 8r) + -1s * (9rs + r2 + -4s2)) = 0 Reorder the terms: ((-32rs2 + 72r2s + 8r3) + -1s * (9rs + r2 + -4s2)) = 0 ((-32rs2 + 72r2s + 8r3) + -1s * (9rs + r2 + -4s2)) = 0 (-32rs2 + 72r2s + 8r3 + (9rs * -1s + r2 * -1s + -4s2 * -1s)) = 0 (-32rs2 + 72r2s + 8r3 + (-9rs2 + -1r2s + 4s3)) = 0 Reorder the terms: (-32rs2 + -9rs2 + 72r2s + -1r2s + 8r3 + 4s3) = 0 Combine like terms: -32rs2 + -9rs2 = -41rs2 (-41rs2 + 72r2s + -1r2s + 8r3 + 4s3) = 0 Combine like terms: 72r2s + -1r2s = 71r2s (-41rs2 + 71r2s + 8r3 + 4s3) = 0 Solving -41rs2 + 71r2s + 8r3 + 4s3 = 0 Solving for variable 'r'. The solution to this equation could not be determined.
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