HI

next time , do not post so many questions in one thread . Its against the rules of the forum . Post one or two , then try to solve the rest and come back if you are really lost .

I will show you a few , then u try out the rest . OK ?

(b) |x^2-5x+6|>2

The properties of absolute value tells us that |x|>a , then x>a , x<-a

so here .. try continue here

then the other case would be .. this is complex so we can just ignore .

(c) |x|>x+1

square both sides ..

(a)

square both sides

Then square again ..

carry on here .