Question

Factories

1 - 27 a cube

Answer 1

(1)^3-(3a)^3

(1-3a)(1+3a+9)

Hope it helps..... :)

Answer 2

1 - 27a^3

(1)^3 - (3a)^3
Applying the formula of (a^3 - b^3)

= (1 - 3a) (1 + 3a + 9a^2)