SOLUTION: I have two expressions that are displayed on my test. sqrt-49, -7,-sqrt49 I have selected sqrt-49 and -sqrt49. is this correct?

Algebra ->  Square-cubic-other-roots -> SOLUTION: I have two expressions that are displayed on my test. sqrt-49, -7,-sqrt49 I have selected sqrt-49 and -sqrt49. is this correct?      Log On


   

Question 87506This question is from textbook algebra
: I have two expressions that are displayed on my test.
sqrt-49, -7,-sqrt49
I have selected
sqrt-49 and -sqrt49. is this correct? This question is from textbook algebra

Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
What was the question? Were you supposed to determine which two expressions have the same value???

sqrt%28-49%29+ is not a real value (or if you consider complex numbers, the value is 9i.

-sqrt%2849%29=+-7

I suppose if you want two that are equivalent, it would be +-7 and -sqrt+%2849%29.

R^2 Retired from SCC