multiply
( v – 4 ) ( v + 8 )
multiply
( v – 4 ) ( v + 8 )
First, multiply (v-4) times v and you get v^{2 }- 4v.
Then multiply (v-4) times 8 and you get 8v - 32.
Now add the two results together and you get v^{2} - 4v + 8v - 32.
Then, you can combine the -4v and + 8v to get + 4v. The final result is:
v^{2} + 4v - 32.