Answer:
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
137
Step-by-step explanation:
A straight line is 180 so take 180 and subtract 43
5%
1/20 = 0.05
0.05 = 5%
