Question

Pls solve it right now pls
q. no. 11​

Answer 1

Step-by-step explanation:

i attached a photo kindly check it

Answer 2

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

so,1-27c^3= ((1^3)-(3c)^3)

= (1-3c) (1+3c+(3c) ^2)

1-27c^3 = (1-3c) (1+3c+9c^2)