To solve the equation -64 = u^3, we can start by taking the cube root of both sides:
∛(-64) = ∛(u^3)
The cube root of -64 is -4 because -4 x -4 x -4 = -64.
Therefore, u = -4 is the real number solution to the equation -64 = u^3.
-64 = u^3 where u is a real number
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