image help: 2 + 2 = 0? - Help.com

Well, Wikipedia once told me that Winnie the Pooh wrote the song “Umbrella” for Rihanna.

You create a ring with 4 numbers in it {0, 1, 2, 3}
1+1=2
1+2=3
1+3=4 but 4 is not in the ring so 4-4=0 thus 1+3=0
2+2=0
2+3=5 5 is not in the ring so 5-4=1 2+3=1
3+3=6 6-4=2 3+3=2

Well there is a trick in math where actually 2=1 and similarly you can do 2+2=0
Its simply by using algebric terms…
let a=squareroot of 2
let b=a
now subtract a from both sides we get
b-a=a-a
now multiply both sides by a+b we get
(a+b)(a-b)=(a+b) (a-a)
a^2+ b^2=(a+b)*0
which is
a^2 + b^2 =0
now a^2 =2
therefore 2+2=0

Now do you know the problem?
Its quite simple I multiplied by 0 i.e b-a=0

If I was working in mod 4 then also
2+2=0
or 3+1=0
or 4=0

In “2+2=0?” The question mark means “Is this true”
You are forgetting the “?”