12. Convert the statements and simplify the expressions

1) Raghu went to a library which had $d$ number of bookshelves, and each shelve has 6 rows of $h$ variety of books, 8 rows of $n$ variety of books and 6 rows of $t$ variety of books. Write an expression in the standard form to represent the total number of books in the library with three terms.

 

 

 

2) If Anushka wants to multiply $p^2-2p-1$ and $2p-1$, what will be the resultant expression?

 

 

(Note: Write the answer in the standard form and enter numbers and variables in separate windows; enter the powers in windows next to variables.)