56x^7-48x^5-40x^3/8x^3

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Solution for 56x^7-48x^5-40x^3/8x^3 equation: 


x in (-oo:+oo)

56*x^7-(((40*x^3)/8)*x^3)-(48*x^5) = 0

56*x^7-5*x^6-48*x^5 = 0

56*x^7-5*x^6-48*x^5 = 0

x^5*(56*x^2-5*x-48) = 0

56*x^2-5*x-48 = 0

DELTA = (-5)^2-(-48*4*56)

DELTA = 10777

DELTA > 0

x = (10777^(1/2)+5)/(2*56) or x = (5-10777^(1/2))/(2*56)

x = (10777^(1/2)+5)/112 or x = (5-10777^(1/2))/112

x^5 = 0

1*x^5 = 0 // : 1

x^5 = 0

x = 0

x in { (5-10777^(1/2))/112, (10777^(1/2)+5)/112, 0 }

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