Question

Help


Determine which of the following are solutions to the equation below.
x^2 = 14

A. 14
B. 7
C. ± square root of 14
D. ± square root of 7

I don't know what "±" means, could someone tell me?

Answer 1

\[\left( -\sqrt{14} \right)^{2}=14\]
\[\left( \sqrt{14} \right)^{2}=14\]
\[\pm~ means~ value~ can~ be + ~or~ -\]
1 hope you got it.