Question

expand the suitable identy (2+ 1)³​

Answer 1

Answer:

The suitable answer for the question is the 27

Answer 2

Answer:

using (x+y)³=x³+y³+3xy(x+y)

=(2+1)³

=2³+1³+3(2)(1)(2+1)

=8+1+6(3)

=8+1+18

=9+18

=27