Question

(x-1)(x^2+8x+16)=14 найти корни

Answer 1

x^2+8x+16=0
D= 64-4*16=0
x=-8/2=-4
(x-1)(x+4)=14
x^2+3x-18=0
D=9-4*(-18)=81
x1=(-3+9)/2=3.5
x2=(-3-9)/2=-5/5