Question 1: (25 pts.) [5 points each] Find the limit of the following expressions (if they exist); simplify completely your final answer and show all work and steps. Results given

without any justifications will not receive credits. \text { d) } \lim _{x \rightarrow-\infty}\left(\frac{\sqrt{3 x^{2}-7 x+2}}{\sqrt{2} x}\right)