(x²-x-16)(x²-x+2)=88
x²-x = t
( t - 16 )(t+2) = 88
t²-14t-32-88=0
t²-14t-120=0
t= 196+480 = 676=26
t=14+26/2 = 20
t2=14 - 26 /2 =-6
t1=20
t2=-6
x²-x=20 x²-x=-6
x²-x-20=0 x²-x+6=0
d=1+80= 81 = 9 d=1-24 =-23
x=1+9/2 =5 нет корней (D<0)<br>x2=1-9/2 =-4
x1= 5, x2=-4
Ответ: -4 , 5