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(2*x^3)/4-5 = 2*(3/4-(5/2)) // - 2*(3/4-(5/2))
(2*x^3)/4-(2*(3/4-(5/2)))-5 = 0
(2*x^3)/4-2*(3/4-5/2)-5 = 0
1/2*x^3 = 3/2 // : 1/2
x^3 = 3
x^3 = 3 // ^ 1/3
x = 3^(1/3)
x = 3^(1/3)
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