13x4-72/8

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Solution for 13x4-72/8 equation: 


x in (-oo:+oo)

13*x^4-(72/8) = 0

13*x^4-9 = 0

13*x^4 = 9 // : 13

x^4 = 9/13

x^4 = 9/13 // ^ 1/4

abs(x) = (9/13)^(1/4)

x = (9/13)^(1/4) or x = -(9/13)^(1/4)

x in { (9/13)^(1/4), -(9/13)^(1/4) }

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