+Jono Posted December 22, 2009 Report Share Posted December 22, 2009 Because Grade 7 Algebra needs to make a comeback. The age old debate simple math question, does -4^2 = -16 or 16? Begin debate now. :D And, yes, I'm aware that "Other" is the correct answer. Link to comment Share on other sites More sharing options...
Larxene Posted December 22, 2009 Report Share Posted December 22, 2009 It could be either. But for sure... -(4)^2 = -16(-4)^2 = 16 Link to comment Share on other sites More sharing options...
Eury Posted December 22, 2009 Report Share Posted December 22, 2009 16. -4 x -4 = 16 2 negatives make a positive. Link to comment Share on other sites More sharing options...
+Jono Posted December 22, 2009 Author Report Share Posted December 22, 2009 @ Eurynome: Depends on parenthesis. As I posted it, you do the "squared" first. Therefore -4^2 could = -(4)^2 =-4x4 = -16 However if it's (-4)^2 then you are correct, it equals 16. Larxene got it. Why so soon? D: Link to comment Share on other sites More sharing options...
Larxene Posted December 22, 2009 Report Share Posted December 22, 2009 Because I'm just that good. Link to comment Share on other sites More sharing options...
+Jono Posted December 23, 2009 Author Report Share Posted December 23, 2009 Yeh you are. D: Link to comment Share on other sites More sharing options...
~Shore Posted December 23, 2009 Report Share Posted December 23, 2009 Well then.What about 2^-4? hrm? Link to comment Share on other sites More sharing options...
Mindscatter Posted December 23, 2009 Report Share Posted December 23, 2009 Actually, there is a third answer. See, if we are in the C-R number group, then (-4)^2=0+(-16)i Well then.What about 2^-4? hrm? it is 1/2^4, which means 0,0625 Link to comment Share on other sites More sharing options...
+Jono Posted December 23, 2009 Author Report Share Posted December 23, 2009 Actually' date=' there is a third answer.[/quote'] And' date=' yes, I'm aware that "Other" is the correct answer.[/quote'] Whatever the hell you want "Other" to be. I just wanted to see how many people here could do some simple algebra. Not the complicated solutions. Oh and I saw this question elsewhere and an IB student managed to answer the question using his "superior knowledge". Just goes to show, there are alot of different ways to get answers out there. I'm looking for the people who can answer it simply. In other words, the way Larxene answered it. Turns out not many people on this site are able to do that. Big surprise. =\ Well then.What about 2^-4? hrm? Not relevant. But if you really want to know, the answer is 0.0625. Link to comment Share on other sites More sharing options...
Mindscatter Posted December 23, 2009 Report Share Posted December 23, 2009 Hey, I said that in my above post! It's basically retarded 7th grade math that I did last year. Link to comment Share on other sites More sharing options...
Guest Welche Posted December 23, 2009 Report Share Posted December 23, 2009 It could be either. But for sure... -(4)^2 = -16(-4)^2 = 16 You fail. There are no brackets. This is how it goes. -4^2=?So first we state that 4=2+2:-(2+2)^2=?Then we state the the entire equation can be divided by two now:-(1+1)^1=?/2The logical next step is two combine the two ones:-(2)^1=?/2Since we don't need the brackets they can disappear:-2^1=?/2To remove the negative we must turn the other side of the equation negative:2^1=-?/2To finish this side we continue to say that "^1" is actually doing nothing:2=-?/2Then we multiply both sides by two:4=-?The we remove the negative to solve the equation:-4=? Therefore -4^2= -4 With this I conclude that "^2" is the same as "^1" and that both numbers are the same. 1=2And therefore your teachers just need to shut up because they are wrong. Link to comment Share on other sites More sharing options...
Mindscatter Posted December 23, 2009 Report Share Posted December 23, 2009 Hell no! -(2+2)^2=-(2^2+2*2*2+2^2) Link to comment Share on other sites More sharing options...
~Shore Posted December 23, 2009 Report Share Posted December 23, 2009 It could be either. But for sure... -(4)^2 = -16(-4)^2 = 16 You fail. There are no brackets. This is how it goes. -4^2=?So first we state that 4=2+2:-(2+2)^2=?Then we state the the entire equation can be divided by two now:-(1+1)^1=?/2The logical next step is two combine the two ones:-(2)^1=?/2Since we don't need the brackets they can disappear:-2^1=?/2To remove the negative we must turn the other side of the equation negative:2^1=-?/2To finish this side we continue to say that "^1" is actually doing nothing:2=-?/2Then we multiply both sides by two:4=-?The we remove the negative to solve the equation:-4=? Therefore -4^2= -4 With this I conclude that "^2" is the same as "^1" and that both numbers are the same.I think you just won the thread. Link to comment Share on other sites More sharing options...
Mindscatter Posted December 23, 2009 Report Share Posted December 23, 2009 It could be either. But for sure... -(4)^2 = -16(-4)^2 = 16 You fail. There are no brackets. This is how it goes. -4^2=?So first we state that 4=2+2:-(2+2)^2=?Then we state the the entire equation can be divided by two now:-(1+1)^1=?/2The logical next step is two combine the two ones:-(2)^1=?/2Since we don't need the brackets they can disappear:-2^1=?/2To remove the negative we must turn the other side of the equation negative:2^1=-?/2To finish this side we continue to say that "^1" is actually doing nothing:2=-?/2Then we multiply both sides by two:4=-?The we remove the negative to solve the equation:-4=? Therefore -4^2= -4 With this I conclude that "^2" is the same as "^1" and that both numbers are the same.I think you just won the thread. No actually he failed simple math with that. Link to comment Share on other sites More sharing options...
~Shore Posted December 23, 2009 Report Share Posted December 23, 2009 Yeah, he was joking. At least I hope he was. Link to comment Share on other sites More sharing options...
Guest Welche Posted December 24, 2009 Report Share Posted December 24, 2009 At first I was like "how the f*ck does that work" then I realized that I can't divide the exponent. Link to comment Share on other sites More sharing options...
+Jono Posted December 27, 2009 Author Report Share Posted December 27, 2009 Hey' date=' I said that in my above post! It's basically retarded 7th grade math that I did last year.[/quote'] I know, I wasn't saying you couldn't do it or hadn't already done it, I was just saying there were people that couldn't. Prime example: It could be either. But for sure... -(4)^2 = -16(-4)^2 = 16 You fail. There are no brackets. This is how it goes. -4^2=?So first we state that 4=2+2:-(2+2)^2=?Then we state the the entire equation can be divided by two now:-(1+1)^1=?/2The logical next step is two combine the two ones:-(2)^1=?/2Since we don't need the brackets they can disappear:-2^1=?/2To remove the negative we must turn the other side of the equation negative:2^1=-?/2To finish this side we continue to say that "^1" is actually doing nothing:2=-?/2Then we multiply both sides by two:4=-?The we remove the negative to solve the equation:-4=? Therefore -4^2= -4 With this I conclude that "^2" is the same as "^1" and that both numbers are the same. 1=2And therefore your teachers just need to shut up because they are wrong. Link to comment Share on other sites More sharing options...
Larxene Posted December 27, 2009 Report Share Posted December 27, 2009 Welche is just as much of an idiot as his tranny brother. Pay no attention to him. Link to comment Share on other sites More sharing options...
+Jono Posted December 27, 2009 Author Report Share Posted December 27, 2009 Believe me, I won't. :D Link to comment Share on other sites More sharing options...
Guest Welche Posted December 30, 2009 Report Share Posted December 30, 2009 Welche is just as much of an idiot as his tranny brother. Pay no attention to him. And your not an idiot? Link to comment Share on other sites More sharing options...
Luna Lovegood Posted December 30, 2009 Report Share Posted December 30, 2009 Welche is just as much of an idiot as his tranny brother. Pay no attention to him. Love you to, Claire baby Link to comment Share on other sites More sharing options...
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