Question

Show that 81 cube riot over three can be written as 3 and one third

Answer 1

The value of the cube root of 81 rounded to 6 decimal places is 4.326749. It is the real solution of the equation x3 = 81. The cube root of 81 is expressed as ∛81 or 3 ∛3 in the radical form and as (81)⅓ or (81)0.33 in the exponent form. The prime factorization of 81 is 3 × 3 × 3 × 3, hence, the cube root of 81 in its lowest radical form is expressed as 3 ∛3.