If f(x) is differentiable at x=a , find ...

If `f(x)` is differentiable at `x=a` , find `(lim)_(x->a)(x^2f(a)-a^2\ f(x))/(x-a)` .

`2af(a)+a^(2)f'(a)`

`-a^(2)f'(a)`

`af(a)-a^(2)f'(a)`

`2af(a)-a^(2)f'(a)`

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