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4-(10*x^4)-(18/3)+1283 = 0
4-10*x^4-6+1283 = 0
-10*x^4 = -1281 // : -10
x^4 = 1281/10
x^4 = 1281/10 // ^ 1/4
abs(x) = (1281/10)^(1/4)
x = (1281/10)^(1/4) or x = -(1281/10)^(1/4)
x in { (1281/10)^(1/4), -(1281/10)^(1/4) }
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