Answer:
A and C
Step-by-step explanation:
Keeping A constant and increasing B.
increasing A and keeping B constant.
U have to show the sentence before the question so the reader will understand
if you want to factorise it answer will be : (x+y)^2 - 4^2
and if you have to expand it anwer will be x^2 + y^2 + 2xy -16
