Write the general term in the expansion of

(x2 – yx)12, x ≠ 0.

The general term Tr+1 in the binomial expansion is given by Tr+1 = nCr an-r br

Here n = 12, a= x2 and b = -yx


Putting the values


Tn+1 =12Cr × x2(12-r) (-1)r yr xr


=


=


6