Question

помогите пожалуйста даю 20 баллов ​

Answer 1

Пошаговое объяснение:

x(x+1)(x+2)(x+3)=24

x(x-3)(x-1)(x-2)-24=0

 

   x²-3x=t

     t(t+2)-24=0

    t²+2t-24=0

   D=4+4*24=100=10²

 t=(-2+10)/2=4                                                        t=(-2-10)/2=-6

 x²-3x=4                                                                  x²-3x=-6

 x²-3x-4=0                                                               x²-3x+6=0

D=9+16=25                                                            D=9-4*6<0        

x=(3+5)/2=4     x=(3-5)/2=-1                                     x∈∅

Ответ: x=4; x=-1