Х^2+10х+22=0 и х^2-110х+216=0

Question

Х^2+10х+22=0 и х^2-110х+216=0

Answer 1

X^2 + 10X + 22 = 0;
 D = 100 - 88 = 12;
 V D = 2V 3 ;
 X1 = ( - 10 + 2V 3) : 2 = - 5 + V 3;
X2 = - 5 - V 3.
   --------------------                                                    
X^2 - 110X + 216 = 0;
D = 12100 - 864= 11236;
V D = 106;
X1 = ( 110 + 106) : 2 = 108;
X2 = 2