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Combining like terms with distribution - Correct response not accepted #30138

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KhanBugz opened this Issue Sep 14, 2012 · 0 comments

2 participants

@KhanBugz

the solution for this problem is 12b or 12b+0. I've submitted that several times and cannot pass to the next question.

combining_like_terms_2.html?seed=177&problem=c_fd_fbx

Answer timeline

[["12b + 0"],["12b"]]

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/534.55.3 (KHTML, like Gecko) Version/5.1.5 Safari/534.55.3

MathJax is loaded, ready, queue length: 0

User hash: 1778483519

@beneater beneater added a commit that closed this issue Sep 18, 2012
@beneater beneater Handle case in combining_like_terms_2 where constant terms simplify to 0
Summary:
fix #26874; fix #29882; fix #29943; fix #29949; fix #29964; fix #29969;
fix #30088; fix #30091; fix #30108; fix #30118; fix #30138; fix #30177;
fix #30205; fix #30257; fix #30258; fix #30276; fix #30279; fix #30280

Previously, the last hint would show something like "-24a + 0" and the regex
answer would expect you to type "-24a0". This fixes the final hint to show just
"-24a" and the answer regex expects "-24a"

Test Plan:
Tested these problematic seeds outside devappserver (before and after the fix):
http://localhost:8000/exercises/combining_like_terms_2.html?debug&seed=112&problem=c_fd_fbx
http://localhost:8000/exercises/combining_like_terms_2.html?debug&seed=177&problem=c_fd_fbx
http://localhost:8000/exercises/combining_like_terms_2.html?debug&seed=161&problem=c_fd_fbx

Reviewers: stephanie

Reviewed By: stephanie

Differential Revision: http://phabricator.khanacademy.org/D742
8183d56
@beneater beneater closed this in 8183d56 Sep 18, 2012
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