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(2*x^5)/2-((1/2)*(9-((4*x^5)/2)))+5/2-8 = 0
(-1/2)*(9-2*x^5)+(2*x^5)/2+5/2-8 = 0
x^5-1/2*(9-2*x^5)+5/2-8 = 0
(-1/2*2*(9-2*x^5))/2+(2*x^5)/2+5/2+(-8*2)/2 = 0
2*x^5-1/2*2*(9-2*x^5)-8*2+5 = 0
4*x^5-16-9+5 = 0
4*x^5-16-4 = 0
4*x^5-20 = 0
(4*x^5-20)/2 = 0
(4*x^5-20)/2 = 0 // * 2
4*x^5-20 = 0
4*x^5 = 20 // : 4
x^5 = 5
x^5 = 5 // ^ 1/5
x = 5^(1/5)
x = 5^(1/5)
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