What cube root equals 390? In other words, what number would you take the cube root of to get 390? To solve this problem, we want to find x in the following equation:
∛x = 390
To solve the ∛x = 390 equation, we first raise both sides to the power of 3 to eliminate the cube root:
(∛x)³ = 390³
x = 390³
Then, we calculate 390³ to get the following answer:
390³ = 390 × 390 × 390
390³ = 59,319,000
∛59,319,000 = 390
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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