90=x(2x)(x+2)

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Solution for 90=x(2x)(x+2) equation: 


Simplifying
90 = x(2x)(x + 2)

Remove parenthesis around (2x)
90 = x * 2x(x + 2)

Reorder the terms:
90 = x * 2x(2 + x)

Reorder the terms for easier multiplication:
90 = 2x * x(2 + x)

Multiply x * x
90 = 2x2(2 + x)
90 = (2 * 2x2 + x * 2x2)
90 = (4x2 + 2x3)

Solving
90 = 4x2 + 2x3

Solving for variable 'x'.

Reorder the terms:
90 + -4x2 + -2x3 = 4x2 + -4x2 + 2x3 + -2x3

Combine like terms: 4x2 + -4x2 = 0
90 + -4x2 + -2x3 = 0 + 2x3 + -2x3
90 + -4x2 + -2x3 = 2x3 + -2x3

Combine like terms: 2x3 + -2x3 = 0
90 + -4x2 + -2x3 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(45 + -2x2 + -1x3) = 0

Ignore the factor 2.

Subproblem 1
Set the factor '(45 + -2x2 + -1x3)' equal to zero and attempt to solve:

Simplifying
45 + -2x2 + -1x3 = 0

Solving
45 + -2x2 + -1x3 = 0

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.

The solution to this equation could not be determined.

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