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Simplifying (x + 5)(x + 7)(x + 6)(x + 4) = 504 Reorder the terms: (5 + x)(x + 7)(x + 6)(x + 4) = 504 Reorder the terms: (5 + x)(7 + x)(x + 6)(x + 4) = 504 Reorder the terms: (5 + x)(7 + x)(6 + x)(x + 4) = 504 Reorder the terms: (5 + x)(7 + x)(6 + x)(4 + x) = 504 Multiply (5 + x) * (7 + x) (5(7 + x) + x(7 + x))(6 + x)(4 + x) = 504 ((7 * 5 + x * 5) + x(7 + x))(6 + x)(4 + x) = 504 ((35 + 5x) + x(7 + x))(6 + x)(4 + x) = 504 (35 + 5x + (7 * x + x * x))(6 + x)(4 + x) = 504 (35 + 5x + (7x + x2))(6 + x)(4 + x) = 504 Combine like terms: 5x + 7x = 12x (35 + 12x + x2)(6 + x)(4 + x) = 504 Multiply (35 + 12x + x2) * (6 + x) (35(6 + x) + 12x * (6 + x) + x2(6 + x))(4 + x) = 504 ((6 * 35 + x * 35) + 12x * (6 + x) + x2(6 + x))(4 + x) = 504 ((210 + 35x) + 12x * (6 + x) + x2(6 + x))(4 + x) = 504 (210 + 35x + (6 * 12x + x * 12x) + x2(6 + x))(4 + x) = 504 (210 + 35x + (72x + 12x2) + x2(6 + x))(4 + x) = 504 (210 + 35x + 72x + 12x2 + (6 * x2 + x * x2))(4 + x) = 504 (210 + 35x + 72x + 12x2 + (6x2 + x3))(4 + x) = 504 Combine like terms: 35x + 72x = 107x (210 + 107x + 12x2 + 6x2 + x3)(4 + x) = 504 Combine like terms: 12x2 + 6x2 = 18x2 (210 + 107x + 18x2 + x3)(4 + x) = 504 Multiply (210 + 107x + 18x2 + x3) * (4 + x) (210(4 + x) + 107x * (4 + x) + 18x2 * (4 + x) + x3(4 + x)) = 504 ((4 * 210 + x * 210) + 107x * (4 + x) + 18x2 * (4 + x) + x3(4 + x)) = 504 ((840 + 210x) + 107x * (4 + x) + 18x2 * (4 + x) + x3(4 + x)) = 504 (840 + 210x + (4 * 107x + x * 107x) + 18x2 * (4 + x) + x3(4 + x)) = 504 (840 + 210x + (428x + 107x2) + 18x2 * (4 + x) + x3(4 + x)) = 504 (840 + 210x + 428x + 107x2 + (4 * 18x2 + x * 18x2) + x3(4 + x)) = 504 (840 + 210x + 428x + 107x2 + (72x2 + 18x3) + x3(4 + x)) = 504 (840 + 210x + 428x + 107x2 + 72x2 + 18x3 + (4 * x3 + x * x3)) = 504 (840 + 210x + 428x + 107x2 + 72x2 + 18x3 + (4x3 + x4)) = 504 Combine like terms: 210x + 428x = 638x (840 + 638x + 107x2 + 72x2 + 18x3 + 4x3 + x4) = 504 Combine like terms: 107x2 + 72x2 = 179x2 (840 + 638x + 179x2 + 18x3 + 4x3 + x4) = 504 Combine like terms: 18x3 + 4x3 = 22x3 (840 + 638x + 179x2 + 22x3 + x4) = 504 Solving 840 + 638x + 179x2 + 22x3 + x4 = 504 Solving for variable 'x'. Reorder the terms: 840 + -504 + 638x + 179x2 + 22x3 + x4 = 504 + -504 Combine like terms: 840 + -504 = 336 336 + 638x + 179x2 + 22x3 + x4 = 504 + -504 Combine like terms: 504 + -504 = 0 336 + 638x + 179x2 + 22x3 + x4 = 0 The solution to this equation could not be determined.
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