How do you factor (y^4-x^9) ? Thank you

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asked Jan 4, 2017 105k views

1 Answer

Emre AYDIN · Answer 1 · 2017-01-11T15:02:58+0000

So since you know that x^2-1 is equal to (x-1)(x+1),
you can figure that this factors to
(y^2-x^3)(y^2+x^3)
because you know how the difference of two squares formula, stated on the top line of this answer.

How do you factor (y^4-x^9) ? Thank you

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