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(12+(5*(x^3-8x))^2)^(1/2)*1/4*((17x^4-16x^2+64)/x^2)^(1/2) =(x^2-8)*(20x^2+1)/(4x)
(12+(5*(x^3-8x))^2)^(1/2)*1/4*((17x^4-16x^2+64)/x^2)^(1/2) =(x^2-8)*(20x^2+1)/(4x)
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