(5x+4)(x^3-5x^2+x-4)=0

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Solution for (5x+4)(x^3-5x^2+x-4)=0 equation: 


Simplifying
(5x + 4)(x3 + -5x2 + x + -4) = 0

Reorder the terms:
(4 + 5x)(x3 + -5x2 + x + -4) = 0

Reorder the terms:
(4 + 5x)(-4 + x + -5x2 + x3) = 0

Multiply (4 + 5x) * (-4 + x + -5x2 + x3)
(4(-4 + x + -5x2 + x3) + 5x * (-4 + x + -5x2 + x3)) = 0
((-4 * 4 + x * 4 + -5x2 * 4 + x3 * 4) + 5x * (-4 + x + -5x2 + x3)) = 0
((-16 + 4x + -20x2 + 4x3) + 5x * (-4 + x + -5x2 + x3)) = 0
(-16 + 4x + -20x2 + 4x3 + (-4 * 5x + x * 5x + -5x2 * 5x + x3 * 5x)) = 0
(-16 + 4x + -20x2 + 4x3 + (-20x + 5x2 + -25x3 + 5x4)) = 0

Reorder the terms:
(-16 + 4x + -20x + -20x2 + 5x2 + 4x3 + -25x3 + 5x4) = 0

Combine like terms: 4x + -20x = -16x
(-16 + -16x + -20x2 + 5x2 + 4x3 + -25x3 + 5x4) = 0

Combine like terms: -20x2 + 5x2 = -15x2
(-16 + -16x + -15x2 + 4x3 + -25x3 + 5x4) = 0

Combine like terms: 4x3 + -25x3 = -21x3
(-16 + -16x + -15x2 + -21x3 + 5x4) = 0

Solving
-16 + -16x + -15x2 + -21x3 + 5x4 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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