#### Answer

$(x^7-y^2)(x^7+y^2)$

#### Work Step by Step

RECALL:
A difference of two squares can be factored using the formula:
$a^2-b^2=(a-b)(a+b)$
The given binomial can be written as:
$=(x^7)^2-(y^2)^2$
This binomial is a difference of two squares.
Factor the given difference of two squares using the formula above with $a=x^7$ and $b=y^2$ to obtain:
$=(x^7-y^2)(x^7+y^2)$