Originally Posted by
sacwchiri ok so i missed a few classes and i have a test comming up soo and i need some help understanding inequalities.
the example im trying to do is:
If |x-2|< 2, show that |(x^2+3x+1)/(x+1)| < 7
form what i could understand from a textbook was something like:
-2<x-2<2
0 < x < 4
and from there on i do a restriction for the x+1 so it cant be divided by 0 right and after that i just kinda get lost... i think i have to find when the top one becomes 0 too but its not exact and i would have to use -b+-sqrt() equation thing soo any help on this one really helps