Topics in an Algebra Course
To learn more about a topic listed below, click the topic name to go to the
corresponding MathWorld classroom page.
||A coefficient is a multiplicative factor such as the constant in front of a polynomial term.
||The geometric mean of a set of n numbers is the value obtained by taking the nth root of their product.
||Infinity is an unbounded quantity greater than every real (and every whole) number.
||A quadratic equation is a polynomial equation in a single variable containing the square of the variable, but no higher powers.
||The quadratic formula is the formula x = (-b +/- sqrt(b^2 - 4*a*c))/2 that gives the roots of a quadratic equation of the form a*x^2 + b*x + c = 0.
||For a mathematical function, a root is a set of arguments for which the function assumes the value of zero.
||A subset is a portion of a set. Subsets can also consist of the entire set or be empty.
||The union of two or more sets is is the set consisting of the combination of all members of all set.