Question

lim[2x+$( x-1)^{2}$ ]
x→∞

Answer 1

$\lim\limits_{x\rightarrow\infty}[2x+(x-1^2)]= \\ \lim\limits_{x\rightarrow\infty}(2x+x^2-2x+1)= \\ \lim\limits_{x\rightarrow\infty}(x^2-1)= \infty$