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Simplifying (x + 4)(x + -9)(4x + -7) = 0 Reorder the terms: (4 + x)(x + -9)(4x + -7) = 0 Reorder the terms: (4 + x)(-9 + x)(4x + -7) = 0 Reorder the terms: (4 + x)(-9 + x)(-7 + 4x) = 0 Multiply (4 + x) * (-9 + x) (4(-9 + x) + x(-9 + x))(-7 + 4x) = 0 ((-9 * 4 + x * 4) + x(-9 + x))(-7 + 4x) = 0 ((-36 + 4x) + x(-9 + x))(-7 + 4x) = 0 (-36 + 4x + (-9 * x + x * x))(-7 + 4x) = 0 (-36 + 4x + (-9x + x2))(-7 + 4x) = 0 Combine like terms: 4x + -9x = -5x (-36 + -5x + x2)(-7 + 4x) = 0 Multiply (-36 + -5x + x2) * (-7 + 4x) (-36(-7 + 4x) + -5x * (-7 + 4x) + x2(-7 + 4x)) = 0 ((-7 * -36 + 4x * -36) + -5x * (-7 + 4x) + x2(-7 + 4x)) = 0 ((252 + -144x) + -5x * (-7 + 4x) + x2(-7 + 4x)) = 0 (252 + -144x + (-7 * -5x + 4x * -5x) + x2(-7 + 4x)) = 0 (252 + -144x + (35x + -20x2) + x2(-7 + 4x)) = 0 (252 + -144x + 35x + -20x2 + (-7 * x2 + 4x * x2)) = 0 (252 + -144x + 35x + -20x2 + (-7x2 + 4x3)) = 0 Combine like terms: -144x + 35x = -109x (252 + -109x + -20x2 + -7x2 + 4x3) = 0 Combine like terms: -20x2 + -7x2 = -27x2 (252 + -109x + -27x2 + 4x3) = 0 Solving 252 + -109x + -27x2 + 4x3 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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