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x in (-oo:+oo)
(5*x)^(2/3)-(44*x)^(1/3)-9 = 0
5^(2/3)*x^(2/3)-x^(1/3)-9 = 0
t_1 = x^(1/3)
5^(2/3)*t_1^2-1*t_1^1-9 = 0
5^(2/3)*t_1^2-t_1-9 = 0
DELTA = (-1)^2-(-9*4*5^(2/3))
DELTA = 36*5^(2/3)+1
DELTA = 106.264639
DELTA > 0
t_1 = ((36*5^(2/3)+1)^(1/2)+1)/(2*5^(2/3)) or t_1 = (1-(36*5^(2/3)+1)^(1/2))/(2*5^(2/3))
t_1 = (1-(36*5^(2/3)+1)^(1/2))/(2*5^(2/3))
x^(1/3)-((1-(36*5^(2/3)+1)^(1/2))/(2*5^(2/3))) = 0
1*x^(1/3) = (1-(36*5^(2/3)+1)^(1/2))/(2*5^(2/3)) // : 1
x^(1/3) = (1-(36*5^(2/3)+1)^(1/2))/(2*5^(2/3))
( (1-(36*5^(2/3)+1)^(1/2))/(2*5^(2/3)) < 0 i 1/3 in (0:1) ) => x należy do O
t_1 = ((36*5^(2/3)+1)^(1/2)+1)/(2*5^(2/3))
x^(1/3)-(((36*5^(2/3)+1)^(1/2)+1)/(2*5^(2/3))) = 0
1*x^(1/3) = ((36*5^(2/3)+1)^(1/2)+1)/(2*5^(2/3)) // : 1
x^(1/3) = ((36*5^(2/3)+1)^(1/2)+1)/(2*5^(2/3))
x^(1/3) = ((36*5^(2/3)+1)^(1/2)+1)/(2*5^(2/3)) // ^ 3
x = (((36*5^(2/3)+1)^(1/2)+1)^3)/200
x = (((36*5^(2/3)+1)^(1/2)+1)^3)/200
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