Question

Add- 18ab sq.+3ab-4bc and -13ab sq.+4ab+10bc

Answer 1

Answer:

take equal terms togather..

than see which sign is given i.e. +or-

than sub or add

Answer 2

Answer:

ur answer is =-31ab²+7ab+6bc

i hope it will help u plz mark it as brainliest answer