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Flag Magical Mathematics[Interesting Approach]> => x=y => x*x = y*x => x2 = yx => x2-y2 =...
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=>x=y=> x*x = y*x=>x2 =yx=>x2-y2 = yx- y2=>= y =>x+y = y=>y+y =y=> 2y* 1 = y *1=>2y / y = 1=>2 =1prove that this is wrong

NITISH , 9 Years ago
Grade 9
anser 2 Answers
purva gupta

Last Activity: 9 Years ago

x^2-y^2=yx-y^2
(x-y)(x+y)=y(x-y)
x-y=0
since 0/0 is undefined
u cant cut (x-y) on either side
and therefore writting (x+y)=y is wrong

manmath

Last Activity: 9 Years ago

 
hii friend,
x^2-y^2=yx-y^2 (x-y)(x+y)=y(x-y) x-y=0 since 0/0 is undefined u cant cut (x-y) on either side and therefore writting (x+y)=y is wrong
 
   

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