## anonymous one year ago What is the sum of the square root of -2 and the square root of -18?

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1. anonymous

square root of 2 and -2 are same so value is 1.41

2. anonymous

value of square root of -8 = 4.24 which is the value of square root of 8

3. anonymous

4. anonymous

I got 5.65

5. anonymous

yeahhh

6. anonymous

That's not one of my choices though

7. anonymous

My choices are...

8. anonymous

they are ?

9. anonymous

$4\sqrt{2}$

10. anonymous

$4\sqrt{2i}$

11. anonymous

$5\sqrt{2}$

12. anonymous

and lastly $5\sqrt{2i}$

13. anonymous

okay so $3\sqrt{2} = 18 do u know that$

14. anonymous

:P lol weir hand writitng hahahhaahha

15. anonymous

okay srs do u know that

16. anonymous

No Idon't understand any of this

17. anonymous

okay so 18 = 2 * 3 * 3 u take 3 out of the root as there are 2 3s remember in square root u need to take away a number that comes twice as 1 like if there is 2 and 2 then take it as single 2