Question

Using pascals triangle help?

I am really confused about this. I need to expand the binomial (d-5y)^6 using pascals triangle. Since the binomial is to the 6'th power that means I use the 6'th row of the triangle right? So far I have 1d^6(5y)^0 + 6d^5(5y)^1 + 15d^4(5y)^2 + 20d^3(5y)^3 + 15d^2(5y)^4 + 6d^1(5y)^5 + 1d^0(5y)^6. At this point I have no idea what i'm suppose to do next. Is this the answer? Please help! Thanks in advance!

Answer 1

yes

Answer 2

ok thank you! (=

Answer 3

sure bye bye