Algebraic expressions are created by combining numbers and variables using arithmetic operations: addition, subtraction, multiplication, division, and exponentiation.

Using all but division, you can create an expression called a polynomial by adding or subtracting terms.

Polynomials are very useful in applications from science and engineering to business. Monomials (and polynomials in general) may have more than one variable, but in this unit, you will only work with single variable polynomials.

The next lesson: Review and Practice Test

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