Question

evaluate using identiy 1-64a^3​

Answer 1

Answer:

,

Step-by-step explanation:

It’s wrong.... a^3+b^3= (a+b)(a^2+ab+b^2).... have a look on the first step itself... you haven’t squared 4a.... you can’t middle split this question

Answer 2

Answer:

1³-4a³

( 1-4a) (1²-4a²+1×4a)

(1-4a) (1-16a²+4a)