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Simplifying (5x + 4)(4x2 + 2x + 7) = 0 Reorder the terms: (4 + 5x)(4x2 + 2x + 7) = 0 Reorder the terms: (4 + 5x)(7 + 2x + 4x2) = 0 Multiply (4 + 5x) * (7 + 2x + 4x2) (4(7 + 2x + 4x2) + 5x * (7 + 2x + 4x2)) = 0 ((7 * 4 + 2x * 4 + 4x2 * 4) + 5x * (7 + 2x + 4x2)) = 0 ((28 + 8x + 16x2) + 5x * (7 + 2x + 4x2)) = 0 (28 + 8x + 16x2 + (7 * 5x + 2x * 5x + 4x2 * 5x)) = 0 (28 + 8x + 16x2 + (35x + 10x2 + 20x3)) = 0 Reorder the terms: (28 + 8x + 35x + 16x2 + 10x2 + 20x3) = 0 Combine like terms: 8x + 35x = 43x (28 + 43x + 16x2 + 10x2 + 20x3) = 0 Combine like terms: 16x2 + 10x2 = 26x2 (28 + 43x + 26x2 + 20x3) = 0 Solving 28 + 43x + 26x2 + 20x3 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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