Here we will show you how to calculate the cube root of 9 minus the cube root of 72. In other words, we will calculate ∛9 - ∛72.
To calculate the cube root of 9 minus the cube root of 72, we will first take the cube root of each number and then find the difference. Here is the math and the answer:
∛9 ≈ 2.0801
∛72 ≈ 4.1602
2.0801 - 4.1602 = -2.0801
∛9 - ∛72 ≈ -2.0801
For your convenience, we have also included the answer to the cube root of 9 minus the cube root of 72 in its simplest radical form:
∛9 - 2∛9
Subtracting Cube Roots
Use the tool below to subtract another set of cube roots.
Cube root of 9 minus cube root of 73
Go here for another cube root subtraction problem that you may find interesting.