Lim x->3 x²-27 per x-3

sepertinya soalnya keliru mungkin x^3-27

x^3-27 / x-3
(x-3)(x^2+3x+9) / (x-3)
x^2 + 3x + 9

lim x -> 3 (x^3-27)/(x-3)
= lim x -> (x^2 + 3x + 9)
= 3^2 + 3.3 + 9
= 9 + 9 + 9
= 27