Question

решите методом интервалов неравенство x^2-11x-26/x+4 > 0

Answer 1

х^2-11х-26/х+4> 0
х^2-11х-26=0
D=(-11)^2-4×(-26)=121+104=225=25^2
х1=11-25/2=-14/2=-7
х2=11+25/2=36/2=18

х+4=0
х=-4


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