Square root! SOS!?

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What does it mean when there is a - sign in front of the radical sign?

2006-11-15 07:48:32 · 2 answers · asked by Emizzle 2 in Education & Reference ➔ Homework Help

2 answers

It means it's a negative number.
For a positive real number, the two square roots are the principal square root and the negative square root.Together, the principal and negative square roots of a number are denoted .

2006-11-15 07:51:32 · answer #1 · answered by maegical 4 · 0⤊ 0⤋

take the sqare root of what's under the radical, and then take what you get and make it negative.

2006-11-15 15:52:02 · answer #2 · answered by auequine 4 · 0⤊ 0⤋