Question

Hi, I need help with these questions:
factor
6m^2-90m+324
8a62-2ab-21b^2
pls help

Answer 1

a) 6(m^2-15m+54)=6(m-9)(m-6)
b) (4a -7b)(2a+3b)

your teacher is too easy.

Answer 2

I still don't get how you got the answer to the second question. Can you explain please