Pregunta: limx→-∞4x3+6x2-25-4x+2x2limx→∞x3+41+7x2

Divide the numerator and denominator by the highest power of $\mathrm{x}$ in the denominator, which is ${\mathrm{x}}^2$ .

$\underset{\mathrm{x}\to -\mathrm{\infty }}{lim}\left(\frac{\frac{4{\mathrm{x}}^3}{{\mathrm{x}}^2}+\frac{6{\mathrm{x}}^2}{{\mathrm{x}}^2}+\frac{-2}{{\mathrm{x}}^2}}{\frac{5}{{\mathrm{x}}^2}+\frac{-4\mathrm{x}}{{\mathrm{x}}^2}+\frac{2{\mathrm{x}}^2}{{\mathrm{x}}^2}}\right)$