An advanced set question that I could not solve.

**The **question confuses me mainly in the $\displaystyle x^2$ part. Here's how it goes:

Given that E(universal set) ={x:x is positive even number},

A={x:0 is equal to and less than x is equal to and less than 10} and

B={x:1 is equal to and less than $\displaystyle x^2$ is less than 82}, list the elements of B, and A n B.

I don't how $\displaystyle x^2$ in group B can be used. Can you help me explain and help me in completing the question with workings? Thank you so much and have a nice day!