please hurry its timed

Answer:
Love the yeonjun pfp
Step-by-step explanation:
KINDA CUTE
Answer:
b
Step-by-step explanation:
[tex] \frac{ {x}^{2} + 1 }{1} \times \frac{1}{x} = \frac{ {x}^{2} + 1 }{x} [/tex]
X cannot equal zero so all real numbers expect zero.