Answer:
#3- a^2 +2ab +b^2
#4- a^2 -b^2
Step-by-step explanation:
Answer: A .10
Step to step equation :
490
4333333
67
8
h = 84
3 = 87 - h
h + 3 = 87 (Add h to both sides)
h = 84 (Subtract 3 from both sides)
