Answered

1. What is (2+y)³ written out?
2.What's the name of the expansion you could use to work out the answer to the previous question?

Sagot :

Jers15viz
1.(2+y)³
=(2+y)(2+y)(2+y)
=(y²+4y+4)(2+y)
=y³+4y²+4y+2y²+8y+8
=Add like terms
=y³+6y²+12y+8

2.The algebraic expression(name) of the question is:
The cube of the sum of a number and 2.

Hope this helps =)