## anonymous one year ago explain irrational square roots?

1. geerky42

Exactly what do you mean by irrational square root? I can tell you this; whenever integer in square root is NOT square number, this square root is irrational.

2. anonymous

how would i solve this http://prntscr.com/7cfmad

3. geerky42

Which number in square root is NOT square number?

4. geerky42

For example. $$9$$ is square number because $$3^2 = 9$$. So $$\sqrt9$$ is not irrational since $$\sqrt9 = 3$$

5. anonymous

ohhh

6. anonymous

so it's 99?

7. geerky42

Right.

8. anonymous

thank you

9. geerky42

$$99 = 11\times9$$, which is not square number.

10. geerky42

Welcome.