Question

(х+6)^2+7=36-4решите уравнение

Answer 1

(х+6)^2=25
Х+6=5
х+6=-5
х1=-1
х2=-11

Answer 2

(х+6)^2+7=36-4
(x+6)^2=25
x^2+12x+36=25
x^2+12x+11=0
D=144-4*11= 100 = 10^2
x1= (-12+10)/2=-1
x2=(-12-10)/2=-11