Question

(х+10)(х-6)=0найти корень

Answer 1

х+10=0
х-6=0

х=-10
х=6
Ответ:6;-10

Answer 2

x^2 - 6x + 10x - 60 = 0 
x^2  + 4x - 60 =0
a = 1 b =4 c = -60 
D= b^2 - 4ac = 16 - 4 * 1 * (-60) = 256
$\sqrt{D}$ = 16
x1 = -4 +16\2 = 6
x2 = -4 -16\2 = -10