(x+4)(2x-12)=0
(x+4)=0 или (2x-12)=0
x = -4 x = 6
1/|x+1|-2 >= 2/|x+1|-2, x≠1,x<span>≠-3
</span>(1/|x+1|-2)-(2/|x+1|-2)<span>>= 0
</span>-1/|x+1|-2>= 0
2/|x+1|-2>= 0
|x+1|-2>0
|x+1|<2
x+1<2,
x+1>=0
-(x+1)<2
x+1<0
x<1
x>=-1
x>-3
x<-1
1000000000000 - квадрилион
S=10×10×6=600см в квадрате
29х-482=620
29х=620+482
29х=1102
х=1102:29
Х=38