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Cutiepo0
 4 years ago
Expand and simplify the first 3 terms of the binomal power:
(3y+5)^9 PLEASE HELP!!
Cutiepo0
 4 years ago
Expand and simplify the first 3 terms of the binomal power: (3y+5)^9 PLEASE HELP!!

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mathteacher1729
 4 years ago
Best ResponseYou've already chosen the best response.0Do you know the binomial theorem? It lets you find the nth term of insane expressions like this. :)

Cutiepo0
 4 years ago
Best ResponseYou've already chosen the best response.0I know usually how to solve using the pascal's triangle, but I don't know how to do it for just the first 3 terms

mathteacher1729
 4 years ago
Best ResponseYou've already chosen the best response.0http://regentsprep.org/Regents/math/algtrig/ATP4/bintheorem.htm might be useful.

mathteacher1729
 4 years ago
Best ResponseYou've already chosen the best response.0Check out the examples. Then substitute your numbers in and see what happens. NOTE  you will get BIG NUMBERS.

Cutiepo0
 4 years ago
Best ResponseYou've already chosen the best response.0Okay, that was useful, but we're not supposed to be using the formula for this question. Do you know if there's any way to solve it just using pascal's triangle?

mathteacher1729
 4 years ago
Best ResponseYou've already chosen the best response.0You'd have to expand out to the 9th row! Have fun with that! Fortunately you can do it in excel. :) http://jwilson.coe.uga.edu/EMAT6680/Parsons/MVP6690/Essay1/excel.html

Zarkon
 4 years ago
Best ResponseYou've already chosen the best response.0use the binomial coefficients \[{n\choose r}=\frac{n!}{r!(nr)!}\]
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