+0

# Square roots

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What is the rule for the negative sign in the square root and how do you find the answer?

$$\sqrt[5]{-243}$$

Guest Jan 18, 2018
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#1
+85759
+3

Note that  we can express this as

5√ [ (-3) (-3) (-3) (-3) (-3) ]   =

- 3

CPhill  Jan 18, 2018
#2
+1

Thanks a lot

Guest Jan 18, 2018

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