Algebra
posted by Amanda .
Can someone please explain this to me, I know the answer but can not figure out how to get it?
(15)(.8)^4(1.8)^2+(6)(.8)^5(1.8)^1+(1)(.8)^6(1.8)^0

I just entered your calculations into the Google window and look what it gave me
http://www.google.ca/search?hl=en&source=hp&q=%2815%29%28.8%29%5E4%281.8%29%5E2%2B%286%29%28.8%29%5E5%281.8%29%5E1%2B%281%29%28.8%29%5E6%281.8%29%5E0&aq=f&aqi=&aql=&oq=&gs_rfai= 
I knew the answer, I don't understand how they got the answer I have tried a million times now.