Х^+3х-10/х^+11х+30≤0
X²+3x-10=0 x1+x2=-3 U x1*x2=-10⇒x1=-5 U x2=2 x²+11x+30=0 x3+x4=-11 U x3*x4=30⇒x3=-6 U x4=-5 х²+3х-10/х²+11х+30≤0 ⇒(x+5)(x-2)/(x+6)(x+5)≤0≥(x-2)/(x+6)≥0 , x≠-5 + _ + _____________________________________ -6 2 x∈(-≈;-6) U [2;≈)