How do you find the sqrt289?

1 Answer
Nov 14, 2016

\sqrt(289)=\pm17
Depends on if you actually need the \pm symbol, ask your teacher.

Explanation:

1. Use a calculator.

just kidding, I know that'd be too easy...

2. Factor out the number under the radical

That's the square root symbol.
\sqrt(17\times17)
Okay... that was fast. I guess your answer is \pm17, because (\pm17)^2=289