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Aniket D Grade: 11
        

why is -1*-1=+1?

6 years ago

Answers : (1)

vijay kumar pandey
32 Points
										

well the question is not general.


if u r joking then it`s okay.otherwise i wanna make u more confused.


let x=1.


x^2=1,x^2-1=0


(x+1)(x-1)=0{since x=1,so x-1=0}


x+1*(x-1)=x-1


if u will cut x-1 both the sides,then u will get x+1=1.


now let`s put the inital assumed value of x that is 1,u know we get an cointradicting result,that is 1=2.


can u tell me the fault in this solution?


 

6 years ago
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