# 7 x 7 = 49?

1. Feb 27, 2010

### Gringo123

Is the value of this expression 49? The andwers in my book say that it should be 9!
(2 + 5)2

2. Feb 27, 2010

### rock.freak667

Unless your book has a different meaning for it, 7x7 will be 49.

3. Feb 27, 2010

### sylas

5 + 22, on the other hand...

4. Feb 27, 2010

### Gringo123

Thanks guys. It's laid out exactly as I have written it so I doubt it's meant to be 5 + 2^2.
Thanks again

5. Feb 27, 2010

### vela

Staff Emeritus
If the plus sign were a minus sign, you'd get (-3)2=9. Could be a typo or a sign mistake somewhere along the way.

6. Feb 27, 2010

### ƒ(x)

Or the book forgot to add the 4...

7. Feb 27, 2010

I cannot imagine an answer that is much more INcorrect for this than $$9!$$.