I found an answer from www.khanacademy.com

The quadratic formula | Algebra (video) | Khan Academy

We could just divide both of these terms by **2** right now. So this is equal to
negative 4 divided by **2** is negative **2 plus** or minus 10 divided by **2** is 5. So that
tells us ...

For more information, see The quadratic formula | Algebra (video) | Khan Academy

I found an answer from www.quora.com

How can we make **2**+**2**=5? - Quora

An anthropologist was asking a primitive tribesman about arithmetic. When the anthropologist asked, "What does two and two make?

For more information, see How can we make **2**+**2**=5? - Quora

I found an answer from math.stackexchange.com

number theory - Contradiction: Prove **2**+**2** = 5 - Mathematics Stack ...

This question already has an answer here: **2**+**2**=5? error in proof 8 answers.
While browsing I came across a weird proof which says **2** + **2** = 5 .

For more information, see number theory - Contradiction: Prove **2**+**2** = 5 - Mathematics Stack ...

I found an answer from en.wikipedia.org

**2** + **2** = 5 - Wikipedia

The phrase "two **plus** two equals five" ("**2** + **2** = 5") is a slogan used in
propaganda, literature or other media, most notably the 1949 dystopian novel
1984 by ...

For more information, see **2** + **2** = 5 - Wikipedia

two plus two gives us the answer of four