x(x+7)(3-6x) больше или равно 0

Question

x(x+7)(3-6x) больше или равно 0

Answer 1

Х(х+7)(3-6х)=0

 

Х=0 или (х+7)=0 или  (3-6х)=0

                 Х=-7               -6х=-3

                                         6х=3

                                         Х=3/6

                                         Х=1/2

                                         Х=0,5