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D( x )
4*x^2-49 = 0
2*y^2-(3*y)-35 = 0
y^2-(3*y)-10 = 0
4*x^2-49 = 0
4*x^2-49 = 0
4*x^2 = 49 // : 4
x^2 = 49/4
x^2 = 49/4 // ^ 1/2
abs(x) = 7/2
x = 7/2 or x = -7/2
2*y^2-(3*y)-35 = 0
2*y^2-(3*y)-35 = 0
2*y^2-3*y-35 = 0
2*y^2-3*y-35 = 0
x należy do R
y^2-(3*y)-10 = 0
y^2-(3*y)-10 = 0
y^2-3*y-10 = 0
y^2-3*y-10 = 0
x należy do R
x belongs to the empty set
2*y^2-(((14/(4*x^2-49))/(y^2-(3*y)-10))/(2*y^2-(3*y)-35))-(3*y) = 0
x belongs to the empty set
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