Question

Factorise 8x cube + 64y cube + 48x square y + 96xy square​

Answer 1

Answer:

Step-by-step explanation:

Pleae expand it like this

By using identity (a+b)^3

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

Now

(2x+4y)^3

Factor is

(2x+4y)(2x+4y)(2x+4y)

Answer 2

Answer:

(2x+4y)^3

Step-by-step explanation:

(a+b)^3=a^3+b^3+3a^2•b+3a•b^2

=8x^3+64y^3+48x^2•y+96x•y^

=(2x)^3+(4y)^3+3(2x^2•4y)+3x(4y^2•2x)

a=2x

b=4y

=(2x+4y)^3