
What cube root equals 821? In other words, what number would you take the cube root of to get 821? To solve this problem, we want to find x in the following equation:
∛x = 821
To solve the ∛x = 821 equation, we first raise both sides to the power of 3 to eliminate the cube root:
(∛x)³ = 821³
x = 821³
Then, we calculate 821³ to get the following answer:
821³ = 821 × 821 × 821
821³ = 553,387,661
∛553,387,661 = 821
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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