There is something I don't understand about algebra: It has been around for thousands of years, yet no one has ever found out what the value of "x" or "y" really is.

AS A KEY OPENS THE DOOR, MATHS IS THE KEY TO ALL PROBLEMS WHICH ARE THEORITICALLY PROVED.

M4Math helped me a lot.

Thanks m4 maths for helping to get placed in several companies.
I must recommend this website for placement preparations.