Question

(2x + y)cube expand​

Answer 1

Answer:

Step-by-step explanation:

By using identity

(a+b)^3=a^3+b^3+3ab(a+b)

a=2x b=y

So

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

8x^3+y^3+6xy(2x+y)

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

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Answer 2

Answer:

8xcube+6xcubey+6xycube+ycube

Step-by-step explanation:

(2x+y)cube

=(2x)cube+3×2cube×xcube+3×2x×ycube+ycube

=8xcube+6xcubey+6xycube+ycube