" (b) "a^(3)+27b^(3)+9ab(a+3b)

8a^(3)-27b^(3)-1-18ab

8(a+b)^(3)+27(b+c)^(3)

Divide : 18a^(3)b^(2) - 27 a^(2)b^(3) +9ab^(2) by 3ab

Factorise each of the following : (i) 8a^(3)+b^(3)+12a^(2)b+6ab^(2) (ii) 8a^(3)-b^(3)-12a^(2)b+6ab^(2) (iii) 27-125a^(3)-135a+225a^(2) (iv) 64a^(3)-27b^(3)-144a^(2)b+108ab^(2) (v) 27p^(3)-(1)/(216)-(9)/(2)p^(2)+(1)/(4)p

Factorise : 8a^(3) + 27b^(3) + 36a^(2)b + 54 ab^(2)

Factorise : a^(3) - 27b^(3) + 2a^(2)b - 6ab^(2)

Factorise : (i) 9a^(3)-27b^(3) " " (ii) a^(3)-343 " " (iii) a^(3)-(27)/(a^(3)) " " (iv) 1+8a^(3) " " (v) (a+b)^(3)-(a-b)^(3) .

Simplify using following identiy: (a +- b) (a^(2) ab + b^(2)) = a^(3) +- b^(3) ((a)/(3)-3b) ((a^(2))/(9) + ab + 9b^(2))