IQ puzzles

[Freddy]

IQ ... who is in for this one?

I will prove that 1 = 2 .

Suppose:
a = 1
b = -2
a + b = c

Now:

a + b = c

(a + b) . (a + b) = c . (a + b)

a² + b² + 2ab = ac + bc

a2 + ab - ac = - ab -b² + bc

a . (a + b - c) = -b (a + b - c)

a = -b

1 = 2 8-)