Factoring Trinomials

Question

Factor

 

30p^2+21pq-36^2

Answer 1

30p²+21pq-36q²

3(10p²+7pq-12q²)

10*12=120=8*15 and 15-8=7, the middle term's coefficient)

15=5*3 and 8=4*2

3(5p-4q)(2p+3q)