(5x^2+8x)(15x^2-7x-4)=

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Solution for (5x^2+8x)(15x^2-7x-4)= equation: 


Simplifying
(5x2 + 8x)(15x2 + -7x + -4) = 0

Reorder the terms:
(8x + 5x2)(15x2 + -7x + -4) = 0

Reorder the terms:
(8x + 5x2)(-4 + -7x + 15x2) = 0

Multiply (8x + 5x2) * (-4 + -7x + 15x2)
(8x * (-4 + -7x + 15x2) + 5x2 * (-4 + -7x + 15x2)) = 0
((-4 * 8x + -7x * 8x + 15x2 * 8x) + 5x2 * (-4 + -7x + 15x2)) = 0
((-32x + -56x2 + 120x3) + 5x2 * (-4 + -7x + 15x2)) = 0
(-32x + -56x2 + 120x3 + (-4 * 5x2 + -7x * 5x2 + 15x2 * 5x2)) = 0
(-32x + -56x2 + 120x3 + (-20x2 + -35x3 + 75x4)) = 0

Reorder the terms:
(-32x + -56x2 + -20x2 + 120x3 + -35x3 + 75x4) = 0

Combine like terms: -56x2 + -20x2 = -76x2
(-32x + -76x2 + 120x3 + -35x3 + 75x4) = 0

Combine like terms: 120x3 + -35x3 = 85x3
(-32x + -76x2 + 85x3 + 75x4) = 0

Solving
-32x + -76x2 + 85x3 + 75x4 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'x'.
x(-32 + -76x + 85x2 + 75x3) = 0


Subproblem 1
Set the factor 'x' equal to zero and attempt to solve:

Simplifying
x = 0

Solving
x = 0

Move all terms containing x to the left, all other terms to the right.

Simplifying
x = 0

Subproblem 2
Set the factor '(-32 + -76x + 85x2 + 75x3)' equal to zero and attempt to solve:

Simplifying
-32 + -76x + 85x2 + 75x3 = 0

Solving
-32 + -76x + 85x2 + 75x3 = 0

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.
Solution
x = {0}

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