Ответ:
1)x^3-5x^2-8x-40>/=0
x(x^2-5x-8)-40>/=0
x>/=40 x^2=5x-8>/=0
x(x-5)>/=0
x>/=8 x>/=13
2)x+4>/=0
x>/=-4
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Ответ:
1)x^3-5x^2-8x-40>/=0
x(x^2-5x-8)-40>/=0
x>/=40 x^2=5x-8>/=0
x(x-5)>/=0
x>/=8 x>/=13
2)x+4>/=0
x>/=-4