Quote Originally Posted by XghostzX View Post
41 – 40 = 61 – 60

=>16 + 25 – 2*5*4 = 36 + 25 – 2*5*6

=>4^2 + 5^2 -2*5*4 = 6^2 + 5^2 – 2*5*6

Using the identity: a^2 + b^2 - 2ab = (a - b)^2

=>(4 - 5)^2 = (6 - 5)^2

Taking square root both the sides:

=>(4 - 5) = (6 - 5) **

=>4 = 6

Dividing by 2

=>2 = 3

=>1 + 1 = 3
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