find the coefficient of x^7y^2 in the expansion of (2x-y)^9
Written on Sept. 5, 2019, 12:09 p.m.
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find the coefficient of x^7 y^2 in the expansion of (2x-y)^9
Naphtaly Varisto
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find the coefficient of x^7y^2 in the expansion of (2x-y)^9
Written on Sept. 5, 2019, 12:09 p.m.
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