factor each polynomial

Question

36p^2-49q^2

Answer 1

Note that it is the difference of two squares: the squares of 6p and 7q.

That should give you a clue.

Also recall that a^2 - b^2 = (a+b)(a-b)

Answer 2

Drwls- Unfortunately your hints do not help as I have no clue how to even start the problem. Please do the problem and then maybe I will understand.

Answer 3

(6p)^2 - (7q)^2

factor it as drwls showed.