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Simplifying (x + 4)(x + -7)(4x + -5) = 0 Reorder the terms: (4 + x)(x + -7)(4x + -5) = 0 Reorder the terms: (4 + x)(-7 + x)(4x + -5) = 0 Reorder the terms: (4 + x)(-7 + x)(-5 + 4x) = 0 Multiply (4 + x) * (-7 + x) (4(-7 + x) + x(-7 + x))(-5 + 4x) = 0 ((-7 * 4 + x * 4) + x(-7 + x))(-5 + 4x) = 0 ((-28 + 4x) + x(-7 + x))(-5 + 4x) = 0 (-28 + 4x + (-7 * x + x * x))(-5 + 4x) = 0 (-28 + 4x + (-7x + x2))(-5 + 4x) = 0 Combine like terms: 4x + -7x = -3x (-28 + -3x + x2)(-5 + 4x) = 0 Multiply (-28 + -3x + x2) * (-5 + 4x) (-28(-5 + 4x) + -3x * (-5 + 4x) + x2(-5 + 4x)) = 0 ((-5 * -28 + 4x * -28) + -3x * (-5 + 4x) + x2(-5 + 4x)) = 0 ((140 + -112x) + -3x * (-5 + 4x) + x2(-5 + 4x)) = 0 (140 + -112x + (-5 * -3x + 4x * -3x) + x2(-5 + 4x)) = 0 (140 + -112x + (15x + -12x2) + x2(-5 + 4x)) = 0 (140 + -112x + 15x + -12x2 + (-5 * x2 + 4x * x2)) = 0 (140 + -112x + 15x + -12x2 + (-5x2 + 4x3)) = 0 Combine like terms: -112x + 15x = -97x (140 + -97x + -12x2 + -5x2 + 4x3) = 0 Combine like terms: -12x2 + -5x2 = -17x2 (140 + -97x + -17x2 + 4x3) = 0 Solving 140 + -97x + -17x2 + 4x3 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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