Question

find the cube of (a + 2b) step by step and ​

Answer 1

Ans i) =a³+3a(2b) (a+2b) (26)³

(x+y)³=x³+3xy(x+y)

+y²

=a³ +6ab(a+2b)+8b³

=a³+6a²b+12ab²+8b³

I hope it helps..

Have a nice day..