Is the value of this expression 49? The andwers in my book say that it should be 9!
(2 + 5)2
Unless your book has a different meaning for it, 7x7 will be 49.
5 + 22, on the other hand...
Thanks guys. It's laid out exactly as I have written it so I doubt it's meant to be 5 + 2^2.
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.
Or the book forgot to add the 4...
I cannot imagine an answer that is much more INcorrect for this than [tex] 9![/tex].
Thanks a lot everyone. I wouldn't be the 1st time that a typo had appeared in this book that I'm using. I think that is what has happened. I just wanted to make sure I wasn't missing somthing as I am teaching myself maths via books and internet.
Separate names with a comma.