1.3 · Powers and rootsLesson 2 of 7Free preview
Cubes and cube roots
A cube is a number times itself three times. The cube root undoes it: 4³ = 64, so ∛64 = 4. A cube root of a negative is negative.
1.3 · Powers and rootsLesson 2 of 7Free preview
A cube is a number times itself three times. The cube root undoes it: 4³ = 64, so ∛64 = 4. A cube root of a negative is negative.