So, a confusion on a^2-b^2 sums. Any explanation? c:

It's not actually a problem related to a question, it's a doubt that has been nagging my mind since yesterday ^^

So, why is

............................. ?

Can't it be that

.............................

?

And yes, when expanding

.............................

.............................

.............................

.............................

and when expanding

.............................

.............................

.............................

.............................

.............................

.............................

Can't ?

Re: So, a confusion on a^2-b^2 sums. Any explanation? c:

If a= 5 and b= 3 then a- b= 2 and a+ b= 8. (a- b)(a+ b)= 2(8)= 16 while (a- b)^2= 4. Now, what is a^2- b^2?

Re: So, a confusion on a^2-b^2 sums. Any explanation? c:

Well just solve (a-b)(a+b) and (a-b)(a-b) and you will see the difference yourself.

Re: So, a confusion on a^2-b^2 sums. Any explanation? c:

Re: So, a confusion on a^2-b^2 sums. Any explanation? c:

Nnnnnnnnnnnnnnnnnnnnnnoooooooooooooooooooooooooooo ooooooo

Re: So, a confusion on a^2-b^2 sums. Any explanation? c:

Quote:

Originally Posted by

**MINOANMAN** Nnnnnnnnnnnnnnnnnnnnnnoooooooooooooooooooooooooooo ooooooo

I see. Then no it may be :)

Re: So, a confusion on a^2-b^2 sums. Any explanation? c:

Quote:

Originally Posted by

**Lexadis**

Yes. So, you wouldn't mind then if you give me $16 and I will give you back the same $4? Then we'll be even.

Re: So, a confusion on a^2-b^2 sums. Any explanation? c:

Hello, Lexadis!

You're making silly errors . . .

You managed to come up with the correct result

. . after making two errors.

That was a waste of time . . .

You began with an equation *which may or may not be true.*

You expanded the right hand side.

Then you factored the right hand side.

And you returned to the equation which may or may not be true.

I can do that, too.

. .

. .

. .

. .

. .

Do you realize what you said?

. .

. .

. .

. . . . . . . .

Re: So, a confusion on a^2-b^2 sums. Any explanation? c:

Didn't think of it that way.. and thank you, got it :)