Which expression is the completely factored form of x^6– 64y^3?

Step-by-step explanation:

Factoring

We need to recall the following polynomial identity:

The given expression is:

To factor the above expression, we need to find a and b, knowing a^3 and b^3. a is the cubic root of a^3, and b is the cubic root of b^3:

Now we apply the identity:

Operating:

The remaining factors cannot be factored in anymore. Thus the completely factored form is:

step-by-step explanation:

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