Module X

• An expression can be term or a collection of terms separated by addition or subtraction operators. Some examples of expressions, with the numbers of terms, are listed below:

  A term can be a number, a variable, or a number and variable combined by multiplication or division.

  In mathematics, often the value of a certain number may be unknown. A variable is a symbol, usually a letter, which is used to represent an unknown number.
• The number (positive or negative) in the algebraic term is called the coefficient.
• The order of operations is a set of rules that you must follow in order to correctly evaluate a numerical expression that contains multiple operations (a combination of addition, subtraction, multiplication, and division).
• answer this

  A) yes

  B) no

  C) no

  
• A Polynomial is a finite sum of terms
• Monomials consist of 1 term
• Binomials consist of 2 terms
• Trinomials consist of 3 terms.
• If there are more than 3 terms, use the

  term polynomial
• The degree of a monomial is equal to its exponent