Asked by Aria
Find the coefficient of x^5y^7 in the expansion of (5x+2y)^12
12 (x)^5 (2y)^7
3
My answer which i got wrong is 220x^5(128y^7)= 28160x^5y^7
12 (x)^5 (2y)^7
3
My answer which i got wrong is 220x^5(128y^7)= 28160x^5y^7
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