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Simplifying (r + -1s)(r2 + 3rs + -1s2) = 0 Reorder the terms: (r + -1s)(3rs + r2 + -1s2) = 0 Multiply (r + -1s) * (3rs + r2 + -1s2) (r(3rs + r2 + -1s2) + -1s * (3rs + r2 + -1s2)) = 0 ((3rs * r + r2 * r + -1s2 * r) + -1s * (3rs + r2 + -1s2)) = 0 Reorder the terms: ((-1rs2 + 3r2s + r3) + -1s * (3rs + r2 + -1s2)) = 0 ((-1rs2 + 3r2s + r3) + -1s * (3rs + r2 + -1s2)) = 0 (-1rs2 + 3r2s + r3 + (3rs * -1s + r2 * -1s + -1s2 * -1s)) = 0 (-1rs2 + 3r2s + r3 + (-3rs2 + -1r2s + 1s3)) = 0 Reorder the terms: (-1rs2 + -3rs2 + 3r2s + -1r2s + r3 + 1s3) = 0 Combine like terms: -1rs2 + -3rs2 = -4rs2 (-4rs2 + 3r2s + -1r2s + r3 + 1s3) = 0 Combine like terms: 3r2s + -1r2s = 2r2s (-4rs2 + 2r2s + r3 + 1s3) = 0 Solving -4rs2 + 2r2s + r3 + 1s3 = 0 Solving for variable 'r'. The solution to this equation could not be determined.
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