What cube root equals 639? In other words, what number would you take the cube root of to get 639? To solve this problem, we want to find x in the following equation:
∛x = 639
To solve the ∛x = 639 equation, we first raise both sides to the power of 3 to eliminate the cube root:
(∛x)³ = 639³
x = 639³
Then, we calculate 639³ to get the following answer:
639³ = 639 × 639 × 639
639³ = 260,917,119
∛260,917,119 = 639
We made the equation above so you will get a full understanding of how to solve problems like this. In the future, note that you can solve all similar problems by simply multiplying the number by itself twice to get the answer.
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