Question
Solve:
$ 9 a^2-24 a b+16 b^2 $

Answer

$ 9 a^2-24 a b+16 b^2 $
$ =(3 a)^2-2 \times 3 a \times 4 b+(4 b)^2 $
$ =(3 a-4 b)^2 $
$ =(3 a-4 b)(3 a-4 b) $

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free