You can put this solution on YOUR website! I have a problem that says find the 4th partial sum of (3x-2y)^11???
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I guess that means "the 4th term" of the expansion.
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1st term 11C11etc.
2nd term 11C10etc.
3rd term 11C9etc.
4th term 11C8(3x)^8(-2y)^3 = 165*6561x^8*-8y^3 = -8660520x^8y^3
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Cheers,
Stan H.
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