Question

(8 − √5) − (3 − √5)
how to solve this and is this a rational number?

Answer 1

Answer:

5 , Yes

Step-by-step explanation:

(8 − √5) − (3 − √5)

8 - √5 - 3 + √5

5

Yes, it is a rational number.

Answer 2

(8 - √5) - (3 - √5)

= 8 - √5 - 3 + √5

= 8 - 3

= 5.

Now, 5 can be written in form of p/q where p and q are integers and q ≠ 0. Therefore, it is a rational number.

More: Rational numbers are denoted by Q.