Gringo123 Messages 141 Reaction score 0 Thread starter Feb 27, 2010 #1 Is the value of this expression 49? The andwers in my book say that it should be 9! (2 + 5)2
rock.freak667 Homework Helper Messages 6,221 Reaction score 31 Feb 27, 2010 #2 Unless your book has a different meaning for it, 7x7 will be 49.
Gringo123 Messages 141 Reaction score 0 Feb 27, 2010 #4 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
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
vela Staff Emeritus Science Advisor Homework Helper Messages 16,226 Reaction score 2,896 Feb 27, 2010 #5 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.
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.
statdad Homework Helper Messages 1,549 Reaction score 99 Feb 27, 2010 #7 I cannot imagine an answer that is much more INcorrect for this than [tex]9![/tex].
Gringo123 Messages 141 Reaction score 0 Feb 28, 2010 #8 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.
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.