Question

Factor completely, then place the answer in the proper location on the grid. a^6 - 25b^2

Answer 1

This is the difference of 2 squares 

square root of a^6  = a^3
and square root of 25 b^2  = 5b  so we get 

(a^3 + 5b)(a^3 - 5b)

Thats the answer