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Simplifying (2x + 7)(x2 + 3x + -4) = 0 Reorder the terms: (7 + 2x)(x2 + 3x + -4) = 0 Reorder the terms: (7 + 2x)(-4 + 3x + x2) = 0 Multiply (7 + 2x) * (-4 + 3x + x2) (7(-4 + 3x + x2) + 2x * (-4 + 3x + x2)) = 0 ((-4 * 7 + 3x * 7 + x2 * 7) + 2x * (-4 + 3x + x2)) = 0 ((-28 + 21x + 7x2) + 2x * (-4 + 3x + x2)) = 0 (-28 + 21x + 7x2 + (-4 * 2x + 3x * 2x + x2 * 2x)) = 0 (-28 + 21x + 7x2 + (-8x + 6x2 + 2x3)) = 0 Reorder the terms: (-28 + 21x + -8x + 7x2 + 6x2 + 2x3) = 0 Combine like terms: 21x + -8x = 13x (-28 + 13x + 7x2 + 6x2 + 2x3) = 0 Combine like terms: 7x2 + 6x2 = 13x2 (-28 + 13x + 13x2 + 2x3) = 0 Solving -28 + 13x + 13x2 + 2x3 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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