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# Algebra

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How do I handle square roots of negative numbers?

Aug 3, 2020

#1
+26767
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Remember     sqrt (-1) = i  ?

3 + sqrt (-16)   =

3 + sqrt (16*(-1) )   =   3 + 4i

and   6-sqrt(-64) = 6 - 8i          take it from here ............

Aug 3, 2020
#2
+781
+2

Square roots of negative numbers will have "i"  in them. $$\sqrt{-1}=i$$. So the square root of a negative number would be the square root of the number if it were postiive with an i.

Aug 3, 2020