x^3/2-4=21 - solution

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Solution for x^3/2-4=21 equation:

x in (-oo:+oo)

(x^3)/2-4 = 21 // - 21

(x^3)/2-21-4 = 0

1/2*x^3 = 25 // : 1/2

x^3 = 50

x^3 = 50 // ^ 1/3

x = 50^(1/3)

x = 50^(1/3)

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