Question

The number (3 – √3) (3 +√3) is
a. an irrational number
b. a rational number
c. not a natural number
d. none of these​

Answer 1

Answer:

b. a rational

$(3 - \sqrt{3})(3 + \sqrt{3})$

3²-root3²

9-3

6

6 is a rational no.