(-5x^3-5x^2+4)(9x^2-4)=

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Solution for (-5x^3-5x^2+4)(9x^2-4)= equation: 


Simplifying
(-5x3 + -5x2 + 4)(9x2 + -4) = 0

Reorder the terms:
(4 + -5x2 + -5x3)(9x2 + -4) = 0

Reorder the terms:
(4 + -5x2 + -5x3)(-4 + 9x2) = 0

Multiply (4 + -5x2 + -5x3) * (-4 + 9x2)
(4(-4 + 9x2) + -5x2 * (-4 + 9x2) + -5x3 * (-4 + 9x2)) = 0
((-4 * 4 + 9x2 * 4) + -5x2 * (-4 + 9x2) + -5x3 * (-4 + 9x2)) = 0
((-16 + 36x2) + -5x2 * (-4 + 9x2) + -5x3 * (-4 + 9x2)) = 0
(-16 + 36x2 + (-4 * -5x2 + 9x2 * -5x2) + -5x3 * (-4 + 9x2)) = 0
(-16 + 36x2 + (20x2 + -45x4) + -5x3 * (-4 + 9x2)) = 0
(-16 + 36x2 + 20x2 + -45x4 + (-4 * -5x3 + 9x2 * -5x3)) = 0
(-16 + 36x2 + 20x2 + -45x4 + (20x3 + -45x5)) = 0

Reorder the terms:
(-16 + 36x2 + 20x2 + 20x3 + -45x4 + -45x5) = 0

Combine like terms: 36x2 + 20x2 = 56x2
(-16 + 56x2 + 20x3 + -45x4 + -45x5) = 0

Solving
-16 + 56x2 + 20x3 + -45x4 + -45x5 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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