Answer:
sum of the polynomials is 
Step-by-step explanation:
Given polynomial is (7 x^3– 4 x^2) + (2 x^3 +3 x)
adding x^3 terms, now we get


Therefore the sum of given polynomial is

32 meters tall.
I've seen this one before
Answer:
6
Step-by-step explanation:
Answer:
Communitive Property of Addition
Step-by-step explanation:
Example of Comunitive Property of Multiplecation:
a+b = b+a