Question

how to factor 25m^3-64m

Answer 1

First factor out the gcf
m(25m^2-64)

The inner binomial can be factored using the difference of squares.
a^2-b^2=(a+b)(a-b)
25m^2-64= (5m+8)(5m-8)

Final answer: m(5m+8)(5m-8)