binomial
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A binomial is an algebraic expression consisting of two terms separated by + or -.
It is a prefix which means two.
Bisect Bi means two
The sum of two squares cannot be factored. It can be represented thus: a^2 + b^2 = (a + bi)(a - bi) In this expression, the i is the symbol for the imaginary number the square root of -1. A squared + B squared = C squared. Assuming A, B, and C are the three sides of a right triangle, also assuming C is the hypotenuse.
There are 2 terms in a binomial. You can be sure of this because the word "bi" means 2, just the same as the word "tri" (like in the term trinomial) means 3. A binomial is a polynomial which is a sum of 2 terms.