Answer: x-7
Step-by-step explanation:

Answer:
3
Step-by-Step explanation:
Answer:
x= -1 y= -1
Step-by-step explanation:
A. The square of an irrational number \sqrt(11)=\sqrt(11)*\sqrt(11)=\sqrt(11^2)=11, which is a rational number. However, in B, C, and D, the two pair of rational numbers cannot multiply to become a rational number.