Pregunta: b) limx→∞5x+25x2+7x-1[1]

To find the limit $\underset{\mathrm{x}\to \mathrm{\infty }}{lim}\frac{5\mathrm{x}+2}{5{\mathrm{x}}^2+7\mathrm{x}-1},$ we can divide the numerator and denominator by the highest power of $\mathrm{x}$ in the denom...