# Polynomials

This course is a part of
**Algebra I**, a 17-course Topic series from Khan Academy.

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

This course contains 9 segments:

**Intro to polynomials**

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

**Adding & subtracting polynomials**

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

**Adding and subtracting polynomials: two variables**

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

**Multiplying monomials**

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.

**Multiplying monomials by polynomials**

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

**Multiplying binomials**

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

**Multiplying binomials by polynomials**

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

**Special products of binomials**

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.

**Polynomials word problems**

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

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Rating | Not enough ratings |
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Length | 9 segments |

Starts | On Demand (Start anytime) |

Cost | Free |

From | Khan Academy |

Download Videos | On all desktop and mobile devices |

Language | English |

Subjects | Mathematics |

Tags | Math Algebra I |

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Rating | Not enough ratings |
---|---|

Length | 9 segments |

Starts | On Demand (Start anytime) |

Cost | Free |

From | Khan Academy |

Download Videos | On all desktop and mobile devices |

Language | English |

Subjects | Mathematics |

Tags | Math Algebra I |

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