(4x^2+7x)(20x^2-11x-4)=0

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Solution for (4x^2+7x)(20x^2-11x-4)=0 equation: 


Simplifying
(4x2 + 7x)(20x2 + -11x + -4) = 0

Reorder the terms:
(7x + 4x2)(20x2 + -11x + -4) = 0

Reorder the terms:
(7x + 4x2)(-4 + -11x + 20x2) = 0

Multiply (7x + 4x2) * (-4 + -11x + 20x2)
(7x * (-4 + -11x + 20x2) + 4x2 * (-4 + -11x + 20x2)) = 0
((-4 * 7x + -11x * 7x + 20x2 * 7x) + 4x2 * (-4 + -11x + 20x2)) = 0
((-28x + -77x2 + 140x3) + 4x2 * (-4 + -11x + 20x2)) = 0
(-28x + -77x2 + 140x3 + (-4 * 4x2 + -11x * 4x2 + 20x2 * 4x2)) = 0
(-28x + -77x2 + 140x3 + (-16x2 + -44x3 + 80x4)) = 0

Reorder the terms:
(-28x + -77x2 + -16x2 + 140x3 + -44x3 + 80x4) = 0

Combine like terms: -77x2 + -16x2 = -93x2
(-28x + -93x2 + 140x3 + -44x3 + 80x4) = 0

Combine like terms: 140x3 + -44x3 = 96x3
(-28x + -93x2 + 96x3 + 80x4) = 0

Solving
-28x + -93x2 + 96x3 + 80x4 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'x'.
x(-28 + -93x + 96x2 + 80x3) = 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 '(-28 + -93x + 96x2 + 80x3)' equal to zero and attempt to solve:

Simplifying
-28 + -93x + 96x2 + 80x3 = 0

Solving
-28 + -93x + 96x2 + 80x3 = 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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