Question

factorise it on a note book ​

Answer 1

Answer:

its is easy

a^2 - 4a^2 + 9b^2 + 12ab

-3a^2 + 9b^2 + 12ab

let ( -ive ) sign be common

then ,,,,

3a^2 - 9b^2 - 12ab

hope it help you ...

Answer 2

Answer:

hiii nice to meet you uh.

ur name???