SOLUTION: (X-2Y)^3 + (X+2Y)^3

Question 167557: (X-2Y)^3 + (X+2Y)^3
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
I'm assuming that you want to factor

Let and

So the expression then becomes (through a simple substitution)

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Start with the given expression.

Rewrite as . Rewrite as .

Now factor by using the sum of cubes formula. Remember the sum of cubes formula is

Multiply

Plug in and

FOIL

Distribute

Combine like terms.

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Answer:

So factors to .

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