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{{ printedBook.courseTrack.name }} {{ printedBook.name }} The cube root of a number $a,$ which is written as $3a ,$ is the inverse of raising $a$ to an exponent of $3.$ For example, $38 =2because2_{3}=8.$ Cube roots and raising a number to the $3$rd power are operations that undo each other.

$3a ⋅3a ⋅3a =aor(3a )_{3}=a$

Unlike square roots, cube roots can yield negative results. This is because the product of three negative factors is negative. For example, because

$(-2)(-2)(-2)=-8→3-8 =-2.$