The XXXXXX XX given in XXXXXXXXX XXXXX:
Images Not Shown
XX y =2, y=X XXX y=-2 XXX XXXXXXXXX graph has XXX X real XXXXX XX XXX XXXXXXXXXX XXXX(y=k) only cuts XXX XXXXX XXXX.
Only XX y=-X has three cuts on the curve, XXXXXX X XXXX roots of the XXXXXXXX.
p.s- I hope you XXXXX XXXX answer XXXXXXX. Any questions or XXXXXXX XXX welcomed in comment XXXXXXX.