Pregunta: limx→∞ax75-7x+67cx72-67

Divide the numerator and denominator by the highest power of $\mathrm{x}$ in the denominator, which is ${\mathrm{x}}^{72}$ .

$\underset{\mathrm{x}\to \mathrm{\infty }}{lim}\left(\frac{\frac{\mathrm{a}{\mathrm{x}}^{75}}{{\mathrm{x}}^{72}}+\frac{-7\mathrm{x}}{{\mathrm{x}}^{72}}+\frac{67}{{\mathrm{x}}^{72}}}{\frac{\mathrm{c}{\mathrm{x}}^{72}}{{\mathrm{x}}^{72}}+\frac{-67}{{\mathrm{x}}^{72}}}\right)$