X2-64 _______ x2-11x+24
X^2-64/x^2-11x+24=0 н.ч. x^2-64=0 x=+-8 н.з. x^2-11x+24=0 D=121-4*24=121-96=√25=5 x1=11+5/2=8 x2=11-5/2=3