56x^7-72x^4+40x^2/-8x^2

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Solution for 56x^7-72x^4+40x^2/-8x^2 equation: 


x in (-oo:+oo)

56*x^7-(72*x^4)+((40*x^2)/(-8))*x^2 = 0

56*x^7-72*x^4+((40*x^2)/(-8))*x^2 = 0

56*x^7-77*x^4 = 0

7*x^4*(8*x^3-11) = 0

8*x^3 = 11 // : 8

x^3 = 11/8

x^3 = 11/8 // ^ 1/3

x = (11/8)^(1/3)

7*x^4 = 0

7*x^4 = 0 // : 7

x^4 = 0

x = 0

x in { (11/8)^(1/3), 0 }

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