# Introduction to polynomials

Contents

Learn how to add, subtract, and multiply polynomial expressions. For example, write (2x+3)(x-1) as 2x²+x-3.

19 exercises available

Learn about polynomial expressions: What are they? How are they constructed? What can we do with them?

Learn how to add and subtract polynomial expressions with one variable.

Learn how to add and subtract polynomial that involve two variables. For example, x^3 + xy + 3y - (x^3 + 6xy + 2y^2).

As an intro to more elaborate polynomial multiplication, learn how to multiply monomials (which are polynomials with a single term). For example, multiply 2x³ and 5x⁷.

Learn how to multiply a polynomial expression by a monomial expression. Monomials are just polynomials with a single term!

Learn how to multiply two binomials together. For example, (3x - 7) * (10x + 2).

Learn about the special types of products of binomials: perfect squares and the difference of two squares. These will be very helpful once you tackle more advanced expressions in Algebra.

Learn how to multiply a polynomial expression by a binomial expression.

See a few examples of how we can represent real-world situations with polynomials.