2 x 2 or 2 + 2 = 5

We Know That,
- 20 = - 20
or, 16 - 36 = 25 - 45
or, 16 - 36 + 81/4 = 25 - 45 + 81/4
or, 4² - 2 x 4 x 9/2 + (9/2)² = 5² - 2 x 5 x 9/2 + (9/2)²
or, ( 4 - 9/2)² = (5 - 9/2)²
or, √(4 - 9/2)² = √(5 - 9/2)²
or, 4 - 9̶/2̶ = 5 - 9̶/2̶
or, 4 = 5

And So, 4 or 2x2 or 2+2 = 5