(5x^2-x-4)(8x^2+5x-1)=

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Solution for (5x^2-x-4)(8x^2+5x-1)= equation:


Simplifying
(5x2 + -1x + -4)(8x2 + 5x + -1) = 0

Reorder the terms:
(-4 + -1x + 5x2)(8x2 + 5x + -1) = 0

Reorder the terms:
(-4 + -1x + 5x2)(-1 + 5x + 8x2) = 0

Multiply (-4 + -1x + 5x2) * (-1 + 5x + 8x2)
(-4(-1 + 5x + 8x2) + -1x * (-1 + 5x + 8x2) + 5x2 * (-1 + 5x + 8x2)) = 0
((-1 * -4 + 5x * -4 + 8x2 * -4) + -1x * (-1 + 5x + 8x2) + 5x2 * (-1 + 5x + 8x2)) = 0
((4 + -20x + -32x2) + -1x * (-1 + 5x + 8x2) + 5x2 * (-1 + 5x + 8x2)) = 0
(4 + -20x + -32x2 + (-1 * -1x + 5x * -1x + 8x2 * -1x) + 5x2 * (-1 + 5x + 8x2)) = 0
(4 + -20x + -32x2 + (1x + -5x2 + -8x3) + 5x2 * (-1 + 5x + 8x2)) = 0
(4 + -20x + -32x2 + 1x + -5x2 + -8x3 + (-1 * 5x2 + 5x * 5x2 + 8x2 * 5x2)) = 0
(4 + -20x + -32x2 + 1x + -5x2 + -8x3 + (-5x2 + 25x3 + 40x4)) = 0

Reorder the terms:
(4 + -20x + 1x + -32x2 + -5x2 + -5x2 + -8x3 + 25x3 + 40x4) = 0

Combine like terms: -20x + 1x = -19x
(4 + -19x + -32x2 + -5x2 + -5x2 + -8x3 + 25x3 + 40x4) = 0

Combine like terms: -32x2 + -5x2 = -37x2
(4 + -19x + -37x2 + -5x2 + -8x3 + 25x3 + 40x4) = 0

Combine like terms: -37x2 + -5x2 = -42x2
(4 + -19x + -42x2 + -8x3 + 25x3 + 40x4) = 0

Combine like terms: -8x3 + 25x3 = 17x3
(4 + -19x + -42x2 + 17x3 + 40x4) = 0

Solving
4 + -19x + -42x2 + 17x3 + 40x4 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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