A) x-3=0 x+1=0
x=3 x=-1
- - - + + +
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-1 3
1) x<-1 x<-1<br> i 3-x-2x-2=4 i x=-1 ne reshenie ( tut sistema )
2) -1≤x≤3 -1≤x≤3
i 3-x+2x+2=4 i x=-1 reshenie -1
3) x>3 x>3
i x-3+2x+2=4 i x=3/5 ne reshenie
⇒x=-1 reshenie
otv. -1