+0  
 
0
227
2
avatar+4690 

Help.

 Nov 3, 2017
 #1
avatar+556 
+2

5i; you are taking the square root of a negative number, so you can remove the negative and multiply it on the outside by i. There is no minus sign in front, so the answer will be 5i.

 Nov 3, 2017
 #2
avatar+96189 
+2

√ [ -25]  =

 

√ [ -1 * 25] =

 

√-1  * √25  =

 

i * 5  =

 

5 i

 

 

cool cool cool

 Nov 3, 2017

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