lim 3x^3-48x/x^2-16 x mendekati 4

[tex] \frac{ 3{x}^{3} - 48x }{ {x}^{2} - 16 } \\ \frac{(x - 4)(3 {x}^{2} + 12x) }{(x - 4)(x + 4)} \\ \frac{3 {x}^{2} + 12x}{x + 4} \\ = \frac{3( {4}^{2}) + 12(4)}{4 + 4} \\ = \frac{48 + 48}{8} \\ = \frac{96}{8} = 12[/tex]
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