repeated parsing issue on 5.3.1.1

[mariama741]

answers are unable to be submitted. because of parsing problem. even on practice problems, correct answers do not get marked correct. link: https://calculator-algebra.org/cgi-bin/calculator?request=exercise&request=exercise&G_ENABLED_IDPS=google&activationToken=&debugFlag=&chapter=&courseHome=pagetemplates/UMB-Math130-2017-Summer.html&fileName=DefaultProblemLocation%2fLogarithm-of-quadratic-equation-1.html&topicList=topiclists/UMB-Math130.txt&studentView=false&

[tmilev]

I was not able to reproduce the issue right away. Can you show me your actual quiz problem with a submission that is marked as wrong?

[mariama741]

the submission is never marked, as there seems to be errors when I try to submit the answer.

on this one, I entered the correct answer on the practice problem, but it still failed to parse the answer.

[tmilev]

Your syntax appears to be wrong in both submissions: in both submissions, the comma is inside the radical, which is not allowed, and in one of the submissions you wrote +5 You should write 5 instead (omit the + in the front).

For your quiz problem, here's how you should format it:

\left(\sqrt{\frac{1}{8} \left(5^{28}-7\right)}, - \sqrt{\frac{1}{8} \left(5^{28}-7\right)}\right)

You can just take the characters above, copy and paste them in the system and it should be understood.

[mariama741]

thank you! sorry to bother again, but on this problem, there doesn't appear to be a second side on the triangle ?

[tmilev]

Thanks for the report. This is indeed a visual bug: if you zoom in with the mouse wheel you will find that two numbers are overlaid on top of one another. I will add an extra point to your grade for this problem.

I've applied both a visual fix and a text-only description of the problem. This should fix the matter for any future users.