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You are not logged in. #2 20140114 20:12:46
Re: parenthesis questionhi shara
(negative two) subtract (negative five).
it is harder to spot that one of the  is 'subtract' and the other is 'negative'. You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #3 20140114 20:17:19
Re: parenthesis questionParentheses are sometimes used to make an expression easier to read or interpret; they can be omitted if the expression remains unambiguous without them. For these
I would say the second one is fine, but I would put parentheses round the −5 in the first one, just so that the “+ −5” won’t be misinterpreted as “±5”. This expression is equal to 3 × 3 = 9. If you omit the parentheses you have which is a different expression altogether, evaluating to 1 + 6 = 7 instead. This is a case in which parentheses are important. Last edited by Nehushtan (20140114 20:19:29) 134 books currently added on Goodreads #4 20140114 21:53:36
Re: parenthesis questionHi Bob,
Shouldn't both answers be 3? Last edited by phrontister (20140114 21:55:48) "The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do."  Ted Nelson 