from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun An equation that employs the variable x having the general form ax2 + bx + c = 0, where a, b, and c are constants and a does not equal zero; that is, the variable is squared but raised to no higher power.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mathematics a
polynomial equationof the second degree.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun an equation in which the highest power of an unknown quantity is a square
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