## anonymous one year ago Is this correct?

1. UsukiDoll

|dw:1434337660225:dw|

2. anonymous

|dw:1434337652479:dw|

3. UsukiDoll

is that a negative inside the radical?

4. UsukiDoll

because if there is a negative inside the radical we have imaginary numbers and they aren't real

5. anonymous

yes

6. UsukiDoll

ok...I already said it if there was a negative inside the radical , it leads to imaginary number... a.k.a i

7. anonymous

meant yes meaning that I understood lol

8. UsukiDoll

$\sqrt{-1} = i, -i$ $\sqrt{-4} = +2i , -2i$ some algebra ii stuff xD

9. anonymous

|dw:1434337932762:dw|

10. anonymous

so than what would that be? @UsukiDoll

11. UsukiDoll

what is that? can you redraw it... if the - sign is outside... it would still be real.

12. anonymous

@UsukiDoll It's outside

13. UsukiDoll

ok... that won't change anything... as long as the - isn't inside we're good but what is that number inside the radical?

14. anonymous

124

15. UsukiDoll

$-\sqrt{124}$ now can we split that number so we can have a perfect square?

16. UsukiDoll

I think this time the perfect square number is going to be small... there is only 1 that works

17. UsukiDoll

$-\sqrt{(4)(31)}$ I think you can handle this from here.

18. UsukiDoll

you just have to take the square root of 4...and you have the final answer.