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3 answers

240x^4y^2

The first three terms are
64x^6 + 192x^5y + 240x^4y^2 ...

2007-08-12 16:15:37 · answer #1 · answered by DadOnline 6 · 0 0

(6,2) *{ (2x)^4 } * (y^2) = 240 { (x)^4 } (y^2)

(6,2) denotes 6C2 , number of combinations of 6 things taken 2 at a time

using (r+1)th term in the expansion of (x+y)^n is


here (r+1) = 3 or r=2

2007-08-12 16:33:09 · answer #2 · answered by qwert 5 · 1 0

(6C2)(2x)^4(y)^2 =
240x^4y^2

2007-08-12 16:27:27 · answer #3 · answered by Helmut 7 · 1 0

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