(9x^2+8x+7)(7x^2+9x)=0

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Solution for (9x^2+8x+7)(7x^2+9x)=0 equation: 


Simplifying
(9x2 + 8x + 7)(7x2 + 9x) = 0

Reorder the terms:
(7 + 8x + 9x2)(7x2 + 9x) = 0

Reorder the terms:
(7 + 8x + 9x2)(9x + 7x2) = 0

Multiply (7 + 8x + 9x2) * (9x + 7x2)
(7(9x + 7x2) + 8x * (9x + 7x2) + 9x2 * (9x + 7x2)) = 0
((9x * 7 + 7x2 * 7) + 8x * (9x + 7x2) + 9x2 * (9x + 7x2)) = 0
((63x + 49x2) + 8x * (9x + 7x2) + 9x2 * (9x + 7x2)) = 0
(63x + 49x2 + (9x * 8x + 7x2 * 8x) + 9x2 * (9x + 7x2)) = 0
(63x + 49x2 + (72x2 + 56x3) + 9x2 * (9x + 7x2)) = 0
(63x + 49x2 + 72x2 + 56x3 + (9x * 9x2 + 7x2 * 9x2)) = 0
(63x + 49x2 + 72x2 + 56x3 + (81x3 + 63x4)) = 0

Combine like terms: 49x2 + 72x2 = 121x2
(63x + 121x2 + 56x3 + 81x3 + 63x4) = 0

Combine like terms: 56x3 + 81x3 = 137x3
(63x + 121x2 + 137x3 + 63x4) = 0

Solving
63x + 121x2 + 137x3 + 63x4 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'x'.
x(63 + 121x + 137x2 + 63x3) = 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 '(63 + 121x + 137x2 + 63x3)' equal to zero and attempt to solve:

Simplifying
63 + 121x + 137x2 + 63x3 = 0

Solving
63 + 121x + 137x2 + 63x3 = 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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