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I am on the Academic Challenge team for my school, and we were given a basic math problem, in which the answer was $\frac{5x-21}{30x^2}$. I stated this exact answer, although I said "the quantity of 5x minus 21", which they deemed incorrect because the moderator's answer sheet did not have "quantity" on it, rather they just had "5x minus 21". I am now filing an appeal to get this question and the points back. For the appeal, I need references to prove my answer is acceptable. First, am I justified in appealing this, and can anyone point me to a theorem or a reputable website I can use as a source?

Edit: I said "quantity" to ensure they didn't believe I was saying the answer was $5x$ - $\frac{21}{30x^2}$

Ethan R. Coover
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  • I am a former professor of math and think a "perfect" answer would be: "the quantity five ex minus twenty-one all over thirty ex-squared." I think your answer close enough for an appeal but cannot point you to a reputable website as a source. Mathematica has a function, Speak, which gives a "reading" of equations, but it employs a rather unnatural factorization before "speaking." – David G. Stork Nov 22 '17 at 17:10
  • I have never used the word "quantity" in this context. Where did you get the idea that "quantity" is involved in a rational expression? – Somos Nov 22 '17 at 18:21

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