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lim (9-3√x)/(9-x)

x→9

Substituting 9 gives you 0/0 and indeterminate.

I tried multiplying the numerator and denominator by (-9+3√x), and multiplied out the brackets to wind up with -81/-27 and then simplified down to - 3/1

I'm just not sure if I'm going about this the correct way. I don't necessarily want the answer, just a bit of guidance. Thanks guys.