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Simplifying (2d2 + 7d + 2)(3d2 + -1d + -4) = 0 Reorder the terms: (2 + 7d + 2d2)(3d2 + -1d + -4) = 0 Reorder the terms: (2 + 7d + 2d2)(-4 + -1d + 3d2) = 0 Multiply (2 + 7d + 2d2) * (-4 + -1d + 3d2) (2(-4 + -1d + 3d2) + 7d * (-4 + -1d + 3d2) + 2d2 * (-4 + -1d + 3d2)) = 0 ((-4 * 2 + -1d * 2 + 3d2 * 2) + 7d * (-4 + -1d + 3d2) + 2d2 * (-4 + -1d + 3d2)) = 0 ((-8 + -2d + 6d2) + 7d * (-4 + -1d + 3d2) + 2d2 * (-4 + -1d + 3d2)) = 0 (-8 + -2d + 6d2 + (-4 * 7d + -1d * 7d + 3d2 * 7d) + 2d2 * (-4 + -1d + 3d2)) = 0 (-8 + -2d + 6d2 + (-28d + -7d2 + 21d3) + 2d2 * (-4 + -1d + 3d2)) = 0 (-8 + -2d + 6d2 + -28d + -7d2 + 21d3 + (-4 * 2d2 + -1d * 2d2 + 3d2 * 2d2)) = 0 (-8 + -2d + 6d2 + -28d + -7d2 + 21d3 + (-8d2 + -2d3 + 6d4)) = 0 Reorder the terms: (-8 + -2d + -28d + 6d2 + -7d2 + -8d2 + 21d3 + -2d3 + 6d4) = 0 Combine like terms: -2d + -28d = -30d (-8 + -30d + 6d2 + -7d2 + -8d2 + 21d3 + -2d3 + 6d4) = 0 Combine like terms: 6d2 + -7d2 = -1d2 (-8 + -30d + -1d2 + -8d2 + 21d3 + -2d3 + 6d4) = 0 Combine like terms: -1d2 + -8d2 = -9d2 (-8 + -30d + -9d2 + 21d3 + -2d3 + 6d4) = 0 Combine like terms: 21d3 + -2d3 = 19d3 (-8 + -30d + -9d2 + 19d3 + 6d4) = 0 Solving -8 + -30d + -9d2 + 19d3 + 6d4 = 0 Solving for variable 'd'. The solution to this equation could not be determined.
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