36-12х+х^2-х^2-12х=036-24х=036-24*1/24=35
(6-x)^2-x(x+12)=36-12x+x^2-x^2-12x=36-24x
x=1/24 36-24*1/24=36-1=35
36-12х+х^2-х^2-12х=0
36-24х=0
36-24*1/24=35
(6-x)^2-x(x+12)=36-12x+x^2-x^2-12x=36-24x
x=1/24 36-24*1/24=36-1=35