Question

49a^2-16b^2 factor

Answer 1

you do it :P

Answer 2

(7a)^2 - (4b)^2
= (7a + 4b)(7a - 4b)
Hope you know the a^2 - b^2 identity.

Answer 3

i love how helpers are getting tired of factorising questions, maybe there should be a permanent thread on here as a guide to factorising