[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
Let's solve :
Answer:
Step-by-step explanation:
i think he is asking
(b+1)³-(b-1)
=b³+1³+3b*1(b+1)-b+1
=b³+1+3b²+3b-b+1
=b³+3b²+2b+2
