SOLUTION: sqrt (z)= -1 please help

SOLUTION: sqrt (z)= -1 please help

Algebra.Com

Question 26198: sqrt (z)= -1
please help
Answer by longjonsilver(2297) (Show Source): You can put this solution on YOUR website!

so, opposite of a square root is "squaring", so square both sides:

--> z = +1

jon.

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