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Topic: Quadratic Equations
Replies: 6   Last Post: Apr 10, 1996 11:09 AM

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Jeffrey Darrow

Posts: 7
Registered: 12/3/04
Quadratic Equations
Posted: Apr 9, 1996 5:40 PM
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Today I had a student in my college algebra class ask me why
"Quadratic Equations" are so named. If we have a polynomial of
degree 3 set equal to zero, we call it a cubic equation and that
makes sense to these students. However, this particular student is
curious because she sees "Q-U-A-D" in quadratic and thinks of four,
yet the polynomial in such an equation is only of degree 2. I've
never encountered this question before and I was at a loss for an
explanation. Does anyone know the origin of the term "quadratic
equation"? I would be very grateful to receive an answer.

Thank you in advance.

Jeff Darrow
Idaho State University

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