Find the coefficient of `x^2 y^3 z^4` in the expansion of ` (ax-by+cz)^9`

Find the coefficient of x^2 y^3 z^4 in the expansion of (ax -by +cx)^9 (b) a^2 b^3 c^4 d in the expansion of (a -b-c +d)^10

Find the coffiecient of x^2 y^3 z^4 w in the expansion of (x-y-z+w)^(10)

Find the coffiecient of x^2 y^3 z^4 w in the expansion of (x-y-z+w)^(10)

Find the coefficient of x^6y^3 in the expansion of (x+2y)^9

Find the coefficient of x^6y^3 in the expansion of (x+2y)^9

Find the coefficient of x^6 y^3 in the expansion of (x+2y)^9 .

Find the coefficient of x^6 y^3 in the expansion of (x+2y)^9 .

Find the coefficient of x^6 y^3 in the expansion of (x+2y)^9 .

Find the coefficient of x^6y^3 in the expansion of (x+2y)^9 .