Question

factorise 8xcube+27ycube+36xsquarey+54xysquare

Answer 1

Answer:

(2x+3y)(2x+3y)(2x+3y)

Step-by-step explanation:

8x^3+27y^3+36x^2y+54xy^2

=(2x)^3+3.(2x)^2.3y+3.2x.(3y)^2)+(3y)^3

=(2x+3y)^3

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