**We will have our Unit 4 Test on Friday, February 14.** It will cover the entirety of Unit 4, but will prioritize the content since the quiz (complex numbers, solving equations of various types, and logarithms). **DO NOT BE ABSENT FROM THIS TEST**

The last topic from this unit is an introduction to the concept of logarithms, which is a pretty big part of the full Algebra 2 curriculum, but not one that has a lot of focus for us in InCA.

## Today’s Links

- Copy of class notes
- HW 4.15 – Evaluating Logarithms
- Lesson Video (Evaluating Logarithms)
- Video Archive
- Adding/subtracting radicals
- Multiplying/distributing radicals
- Rationalizing denominators
- Evaluating nth roots
- Simplifying radicals with variables
- Simplifying radicals with negative radicands
- Multiplying complex numbers
- Powers of i
- Solving quadratics with non-real roots
- Solving radical equations (examples beyond the 6 minute mark are beyond what we will do in this class)
- Solving exponential equations using base equality

## Cumulative IXL Modules

- Multiply complex numbers
- Divide complex numbers
- Powers of i
- Solve a quadratic equation by factoring
- Solve a quadratic equation using the quadratic formula
- Solve radical equations
- Solve equations using base equality
**Convert between exponential and logarithmic form: rational bases****Evaluate logarithms**- Simplify radical expressions with variables I
- Nth roots
- Multiply radical expressions
- Divide radical expressions
- Add and subtract radical expressions
- Simplify radical expressions using the distributive property