Like Radicals
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
State
Like radicals share the same index and the same radicand; only like radicals combine under addition and subtraction.
Show
3√2 + 5√2 = 8√2, the way 3x + 5x = 8x. But 3√2 + 5√3 stays as written.
Watch for
Coefficients add; the radical rides along unchanged.
Builds on
- Nothing — this is a starting point.
Unlocks
- Nothing yet depends on this.