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48*x^7-(((56*x^3)/8)*x^3)-(32*x^5) = 0
48*x^7-7*x^6-32*x^5 = 0
48*x^7-7*x^6-32*x^5 = 0
x^5*(48*x^2-7*x-32) = 0
48*x^2-7*x-32 = 0
DELTA = (-7)^2-(-32*4*48)
DELTA = 6193
DELTA > 0
x = (6193^(1/2)+7)/(2*48) or x = (7-6193^(1/2))/(2*48)
x = (6193^(1/2)+7)/96 or x = (7-6193^(1/2))/96
x^5 = 0
1*x^5 = 0 // : 1
x^5 = 0
x = 0
x in { (7-6193^(1/2))/96, (6193^(1/2)+7)/96, 0 }
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