Question

8x cube + 27y cube + 36x square y + 54 xy square? Factorise

Answer 1

Answer:

(2x+3y)^3

Step-by-step explanation:

(a+b)^3=a^3+b^3+3a^2b+3ab^2

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

              =(2x+3y)^3

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