# The use of an operator

• Mar 20th 2008, 12:23 PM
Twig
The use of an operator
Hi

The operator will be called Op

If a Op b = 3 + ab for all real numbers a and b, then 2 Op (1 Op 3)

I dont even know where to start..
• Mar 20th 2008, 01:08 PM
Plato
Quote:

Originally Posted by Twig
The operator will be called Op
If a Op b = 3 + ab for all real numbers a and b, then 2 Op (1 Op 3)
I dont even know where to start..

You can't possibly mean that.
• Mar 20th 2008, 01:24 PM
Twig
hi
Hi

does this mean I make a= 1 and b=3 ?

then I do the formula, 3 + 1*3 and that times two?
• Mar 20th 2008, 01:27 PM
Plato
Quote:

Originally Posted by Twig
then I do the formula, 3 + 1*3 and that times two?

No. Say that X=3 + 1*3
The 2 Op X =?
• Mar 20th 2008, 01:32 PM
Twig
hi
Uh, so you mean taking 2 Operators times X?

I dont really get it
• Mar 20th 2008, 01:47 PM
Twig
hi
Hi!

I solved it, thx for your help!

Now I get what they´re saying, at first I did NOT interpret the question right so to speak..

I took 2 Op (3 + 1*3), that gave me -> 3 + 2(3 + 3) = 15