Question

Write the expansion for(a+1)^3

Answer 1

Answer:

(a³+2a²+3a+2).

Step-by-step explanation:

= (a+1)(a+1)(a+1)

= (a²+1+a+1)(a+1)

= (a²+a+2)(a+1)

= (a³+a²+2a+a²+a+2)

= (a³+2a²+3a+2)

Hope this helps,