IIT JEE , AIEEE Forum - Mathematics , Algebra

Aatish

x = x

x²= x²

x²- x²= x²- x²

(x+x) (x-x) = x (x-x)

x+x=x

if x=1

2 = 1

therefore maths proved wrong

amaron

oh come on!!!!

you can only cancel non zero terms,
you can not cancel x-x as it is equal to 0

sudeep.kumar

After fourth step, for getting fifth step, you divided both sides by (x - x), that is zero.
But division or multiplication by zero on both sides is not allowed while simplifying an equation or expression.... as both sides become infinity or zero...

Aatish

thanks for your excellent reply.

srish

I am of the opinion that if 0 comes in two sides of an eqn., it cannot be cut or else, many more concepts will be proved wrong, like for eg.

2-2=3-3

0=0;

2*0= 3*0;

Now, if you cut 0 from both the sides of the equality, you end up with -2=3,which is surely not feasible.

So, in the question u are mentioning, (x-x) cannot be cut from the equation.

himanshuagrawal

you can not take x=x in maths because it is not universal

Aatish

Himanshu plz tell why x=x is not universal ?

puneet_arora

its ridiculus,mockery of maths what is this cancelling zeros getting infinity as answer still solving ahead what a shame man !!!!!

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