Question

(х^2-5х+6)*(х^2+х-2)=0

Answer 1

(x^2-5x+6)*(x^2+x-2)=0
x^2-5x+6=0
D=25-24=1
x1=(5-1)/2=2
x2=3

x^2+x-2=0
D=1+8=9
x1=(-1+3)/2=1
x2=-2