Question

Simplify please.

question:
a+2a+3a+4a
A)9a
B)10a³(the small three is a four)
C)9a³(also a small four)
D)10a

Answer 1

D

Explanation:

Answer 2

the answer is D, because the “ a “ thats alone has an invisible one in front of it, so it’ll be 1a+2a+3a+4a