What cube root equals 400? In other words, what number would you take the cube root of to get 400? To solve this problem, we want to find x in the following equation:
∛x = 400
To solve the ∛x = 400 equation, we first raise both sides to the power of 3 to eliminate the cube root:
(∛x)³ = 400³
x = 400³
Then, we calculate 400³ to get the following answer:
400³ = 400 × 400 × 400
400³ = 64,000,000
∛64,000,000 = 400
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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