Question

expand the following
(2x+y)3

Answer 1

Here is the answer to ur question......

Answer 2

Answer:

(2x+y)^3

=(2x)^3+(y)^3+3(2x)^2(y)+3(2x)(y)^2

=8x^3+y^3+3(4x^2)(y)+3(2x)(y^2)

=8x^3+y^3+12x^2 y+6xy^2

=8x^3+y^3+12x^3y+6xy^2