IQ Test-2

[Moamar Qazafi]

-6=-6
OR
4-10=-6
by using completnig squre method
(2)^2 -2(2)(5/2)=-6

adding (5/2)62 on both sides

(2)^2 -2(2)(5/2)+ (5/2)^2=-6+(5/2)^2

now we have complete squre so
(2-5/2)^2=-6+(5/2)^2
(2-5/2)^2=-6+25/4

(2-5/2)^2=(-24+25)/4

(2-5/2)^2=1/4
Taking under root on both the sides

2-5/2=1/2

2=1/2+5/2
adding 2 on both sides
2+2=1/2+5/2+2

2+2=(1+5+4)/2
2+2=10/2
2+2=5

proved
2+2=5