Question

$x^{3}-3 x^{2} -70x geq 0$

Answer 1

X(x^2-3x-70)>=0
x(x-10)(x+7)>=0

x>=0
                                x>=10
x<=-7 U x>=10
x<=0
                                [-7;0]
[-7;10]

ответ x>=-7