I have a tonne of factoring questions i need to answer but i dont know how to do them. If someone could please help me do this one question i think i can do the rest of them.

16xExponent 2 - 40x +25

im sorry i miss posted this, the 5 did not work on my keyboard i originally posted 16xExponent 2 - 40x +2 when it is 16xExponent 2 - 40x +25

sory it would also be great if you could gothrough the steps you take to factor the question too please :)