Question

How do you factor an equation like this? Do you guys know any videos that would help with an equation like this?

Answer 1

formula:
a^3 + b^3 = (a+b)(a^2 − ab + b^2)
so
x^3y^3 + 343
= (xy)^3 + 7^3
= (xy + 7)(x^2y^2 - 7xy + 49)

hope it helps