-20 = -20
or 16-36= 25-45
=> 4^2-9x4 = 5^2 - 9x5
=> 4^2-9x4 + 81/4 = 5^2 - 9x5 + 81/4 // Add 81/4 to both sides
As we know (a-b)^2 = a^2 -2ab + b^2
or you may simply solve each sides
so (4-9/2)^2 = (5 - 9/2)^2
cancel power on the both sides
=> 4-9/2 = 5-9/2
Cancel -9/2 on both sides
4=5
or 2+2=5
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica, san" id="quote">quote<hr height="1" noshade id="quote"><i>Originally posted by lost</i>
<br />Often 2+2 =5 is used to understand effect of synergy.
Cooperation of two or more things to produce a combined effect greater than the sum of their separate effects.
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