## Conjugate

Table of Contents

## Definitions

Conjugate is where we change the sign in the middle of two terms

The conjugate of “a + b” is “a – b”

Conjugate is only used in expressions with two terms (binomials)

### Examples

Expressions | Conjugate |

a + 1 | a – 1 |

b^{2} – 2 | b^{2} + 2 |

4 + √3 | 4 – √3 |

## When we use conjugate?

It can help us Rationalizing the Denominator to simplify

Example