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#1
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-5^2 = -5 * 5 = -25. This is the correct order of operations. [/ QUOTE ] [img]/images/graemlins/confused.gif[/img] -5^2 is either -(5^2) or (-5)^2 depending on priorities of "-" where "-" is symbol which change expression's sign not substracting. |
#2
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[ QUOTE ]
[ QUOTE ] -5^2 = -5 * 5 = -25. This is the correct order of operations. [/ QUOTE ] [img]/images/graemlins/confused.gif[/img] -5^2 is either -(5^2) or (-5)^2 depending on priorities of "-" where "-" is symbol which change expression's sign not substracting. [/ QUOTE ] Yes I should have used a set of parentheses. By what I typed I meant -(5 * 5). |
#3
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0 - 5^2 = Y
0 = Y + 5^2 -Y = 5^2 -Y = 25 Y = -25 how badly did I screw up? |
#4
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how badly did I screw up? [/ QUOTE ] Dont forget that "-5" is not the same as "0 - 5". First minus is a symbol which change expression's sign and second minus is a symbol for operation of substracting. These two can have diffrent priorities. |
#5
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BEDMAS .. look it up on google.
I wonder : if people cannot sort out simple math disputes on SMP, how will they be able to sort out complicated disputes about God? |
#6
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Well, you guys are no fun.
Even though Google and Excel return an answer of 25, that's contrary to standard convention. By convention, exponentiation has priority over multiplication, and the unary minus is considered to be a multiplicative operator (converting the operand to its opposite by multiplying by negative one). Many people read -5^2 as taking negative five and squaring it. But in fact there is no negative five in that expression. The thing that's negative is five squared, not five. The squaring comes first, then the negativing. (Yes, I am making up words.) It's funny how adamant some people are, however, that -5^2 - 25, and that there's no other legitimate way of doing it. |
#7
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Even though Google and Excel return an answer of 25, that's contrary to standard convention. [/ QUOTE ] it might be because most users of Excel aren't careful enough, so the programmers made it this way. but what about -6^2? |
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