The use of radical expressions as the inverse of exponents extends beyond the power of two. While the square root is the inverse operation for a power of 2, there are cube roots, fourth roots, fifth roots, and so on for other powers. Generally, we call these “Nth roots.” Your homework tonight is HW 4.4 – Evaluating Nth Roots. I’ve uploaded the notes here, and you can check out this video for some more examples (and instructions for evaluating nth roots on the calculator).
Cumulative IXL Review Modules (newly added modules are in bold)
- L.6 – Nth roots
- L.7 – Multiply radical expressions
- L.8 – Divide radical expressions
- L.9 – Add and subtract radical expressions
- L.10 – Simplify radical expressions using the distributive property