Answer
$(x^4+y^3)(x^4-y^3)$.
Work Step by Step
The given expression is $x^8-y^6$.
Rewrite the expression in square terms.
$(x^4)^2-(y^3)^2$
Use the algebraic identity.
$a^2-b^2=(a+b)(a-b)$
The expression will be
$(x^4+y^3)(x^4-y^3)$.