Is this correct?
2(3^-2)(-2^-2) = 1/2(3^2)(-2^2) = 1/72 ?

Question

Is this correct? 
2(3^-2)(-2^-2) = 1/2(3^2)(-2^2) = 1/72 ?

anonymous · Answer

um its 2*1/9*-1/4=-1/18 :)

campbell_st · Answer

I think its wrong

$$2(3^{-2})(-2^{-2}) = 2/(3^2)(-2^2) = 1/18$$

campbell_st · Answer

remember, square a negative gives a positive

anonymous · Answer

i think you just multipled wrong, youe have the correct idea. also remember this
when you have -x^2
and your told x=1
this does not mean (-1)^2=1 it means -(1)^2=-1 :)

anonymous · Answer

nooo campbell_st you are wrong, unless she meant to put brackets it is wrong

anonymous · Answer

so it's positive 18 or -18 ?

campbell_st · Answer

then if I'm wrong the answer will be

$$2/(3^2)-(2)^2 = 2/5$$

campbell_st · Answer

its positive 18...

anonymous · Answer

are there brackets around the -2^-2? is it technicaly like this -(2)^-2 or like this (-2)^-2?

campbell_st · Answer

so your telling me (-2 x -2 ) = -4

anonymous · Answer

you are missing brackets campbell...

anonymous · Answer

ur not understanding

anonymous · Answer

i am saying this -(2)^2= -1*(2*2)=-4 do you understand?

campbell_st · Answer

then the answer is 9 - 4 = 5   so its 2/5

anonymous · Answer

justine the way your question is written it should be negative

anonymous · Answer

WHY ARE YOU SUBTRACTING?!

campbell_st · Answer

I see the neagtive and square inside the brackets... and squaring a negative gives a positive

you keep telling me the negative is an operator....

anonymous · Answer

LOOK IF IT IS WRITTEN AS SUCH
-(x)^2 then the answer will be -
BUT
if it is as you interpreted it
(-x)^2 then the answer will b +
get it??

campbell_st · Answer

well I hope you have a lot of success with that method

anonymous · Answer

campbell, you want MORE proof? http://www.wolframalpha.com/input/?i=2%283%5E-2%29%28-2%5E-2%29

anonymous · Answer

i just put in her exact equation look at the answer

anonymous · Answer

math is not like english or french, etc its simple. there is one way of speaking one correct answer. -1/18 is the correct answer
jasminee sorry for all this but I hope you understand because it is very easy to make mistakes like this

anonymous · Answer

campbell you arrogance will not do you well, be open to learning new things. I have made this mistake before. Important thing is to learn from them. I have nothing against you, i am sure you are brilliant. but just be a little more open thats all.