8 9
* =
4 4
four to the eighth power times four to the nineth power
You can do that on this site!
Go here: (the homepage)
http://web2.0calc.com/
then type in 4^8*4^9
By the way, if your multipling two numbers with the same base, you can add the exponets.
So 48*49 = 48+9 = 417