Einstein'S bUlb!!

Einstein just before dying called his wife and tells sarcastically
"Dear,you have been very loving and caring to me and i am indebted to you in great magnitudes" and hands over a cheque wrapped in velvet and tells her "you deserve every bit of that,my love" and then closed his eyes,his breadth.

After the final prayers and funeral the wife returns home.sudden flashback as to how much money her husband had made over the years with his intelligence and research and what not.with trembling hands as to what awaits her on the cheque leaf she opens the velvet purse

Bank of Bulbs Dt 01/04/1906

PAY _______ELISA(my wonderful wife)____________ a sum
of (A-X)*(B-X)*(C-X)..... where A,B,C can be an A.P/G.P and X can take upto the least possible natural number

Signed
Einstein :-)

Elisa could not believe her sight.She was overjoyed and thrilled at her husband's brilliance.Obviously Einstein would have had a tought time writing such a huge amount of money he has in his name and has probably put it up in an equation.

So she rushes to the BANK OF BULBS to encash the money and took a dozen of suitcases with her to help her with the money.Elisa knocks at the Manager's door and produces the cheque.The manager looks at it and thinks for a second and could not believe the equation he saw until he saw the signed name Einstein below.

Manager : Are you einstein's wife?

Elisa :Yes sir,And all that money now belongs to me according to his will

Manager : You can own the money only if you know the alphabets by heart

Elisa(now outrageous) : Whta kind of a joke is that?..I sure know my english lego blocks

Manager(now smiling) : and what is the value of X you want to use maam?

Elisa :Am running on a bad patch.so i need some money.so use the least possible value 1

Manager :Very well. (A-1)*(B-1)*(C-1)*......(1-1)*(Y-1)*(Z-1)=>>>0

Now thatz what i call it an EINTEIN'S BULB