## anonymous 5 years ago quadratic equation question.

1. anonymous

$y ^{?}-80=0$

2. anonymous

and I was told the answer should be $\sqrt{80}$ and$-\sqrt{80}$ but my online assignment isn't letting me type it in this format. Anyone have any idea what the correction would be?

3. anonymous

that's supposed to be a 2 not a ? after y

4. anonymous

Honestly, they're probably not asking for the negative one if it's only one answer. Try putting in 8.944. That's the value of sqrt(80).

5. anonymous

it's looking for 2 answers actually. and it has to be in radical form

6. cherrilyn

add 80 to the other side to get $y ^{2}=80$ then get y alone by squarerooting. $\sqrt{80} can be positive or negative$

7. anonymous

8. cherrilyn

maybe try putting in + or - sqrt(80) ?

9. anonymous

it's 2 different boxes for the answers. hmm. yeah. idk why it's not working but i'll maybe just move on to the next. Thanks