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Simplifying (x + 4)(x + 3)(x + -15) = 0 Reorder the terms: (4 + x)(x + 3)(x + -15) = 0 Reorder the terms: (4 + x)(3 + x)(x + -15) = 0 Reorder the terms: (4 + x)(3 + x)(-15 + x) = 0 Multiply (4 + x) * (3 + x) (4(3 + x) + x(3 + x))(-15 + x) = 0 ((3 * 4 + x * 4) + x(3 + x))(-15 + x) = 0 ((12 + 4x) + x(3 + x))(-15 + x) = 0 (12 + 4x + (3 * x + x * x))(-15 + x) = 0 (12 + 4x + (3x + x2))(-15 + x) = 0 Combine like terms: 4x + 3x = 7x (12 + 7x + x2)(-15 + x) = 0 Multiply (12 + 7x + x2) * (-15 + x) (12(-15 + x) + 7x * (-15 + x) + x2(-15 + x)) = 0 ((-15 * 12 + x * 12) + 7x * (-15 + x) + x2(-15 + x)) = 0 ((-180 + 12x) + 7x * (-15 + x) + x2(-15 + x)) = 0 (-180 + 12x + (-15 * 7x + x * 7x) + x2(-15 + x)) = 0 (-180 + 12x + (-105x + 7x2) + x2(-15 + x)) = 0 (-180 + 12x + -105x + 7x2 + (-15 * x2 + x * x2)) = 0 (-180 + 12x + -105x + 7x2 + (-15x2 + x3)) = 0 Combine like terms: 12x + -105x = -93x (-180 + -93x + 7x2 + -15x2 + x3) = 0 Combine like terms: 7x2 + -15x2 = -8x2 (-180 + -93x + -8x2 + x3) = 0 Solving -180 + -93x + -8x2 + x3 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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