Question

Write an irrational number that can be added to the irrational number square root of 20 to get a rational sum of 11 .

Answer 1

11 -√20

Explanation:

If you want ...

√20 + x = 11

You can find x by subtracting √20 from both sides of the equation:

x = 11 -√20

The number you're looking for is 11 -√20.