Answer:
(8c+3)(c−3)
(3m−n)(m+2n)
Step-by-step explanation:
Factor 3m2+5mn−2n2
3m2+5mn−2n2
=(3m−n)(m+2n)
Factor 8c2−21c−9
8c2−21c−9
=(8c+3)(c−3)
