Ever wished nth roots and radicals made more sense? This video breaks it down with a simple math hack (and some sneaky tricks) using easy examples for square roots, cube roots, and more. Perfect if you want math to click!
The little number is called the Index
The "square root symbol" is called the radical or root
The number under the radical is called the radicand.
Taking the 4th root of "b" means 4 factors of what number equals "b" or
4 of what number being multiplied equals "b" or
what number to the 4th power equals "b"
This video could work for #Algebra students who were absent, or in a flipped classroom.
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0:00 Intro – What’s this math hack about?
0:03 Nth roots explained (radicals, radicands & indexes)
2:10 Example 1 – Square root of a fraction made easy
3:31 Example 2 – Adding radicals like a pro
4:36 Example 3 – Cube roots (even with negatives!)
7:13 Example 4 – Fourth roots with calculator tricks
8:05 Wrap-up & quick recap