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find the general trem in the expansion of $(x^{2} - yx)^{12}$

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The general term in the expansion of $(x^{2} - yx)^{12}$ is:

$\General: Term: of: (a+b)^n ::is: T_n=^{n} extrm{C}_{r}a^{n-r}b^r \ put :n=12,a=x^2,b=-yx \ T_{r+1}=^{12} extrm{C}_{r}(x^2)^{12-r}(-yx)^r\After :simplifying \ T_{r+1}=(-1)^r.^{12} extrm{C}_{r}x^{24-r}y^r$

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