suryakanth AskiitiansExpert-IITB
Last Activity: 14 Years ago
Dear baba.
we know
-20 = -20
=> 16-36 = 25-45
express it as: ((2+2) 2) - (9 X (2+2)) = (5^2)- 9 X 5
Add 81/4 to both sides: ((2+2) 2)- (9 X (2+2)) + 81/4 = (5^2)- (9 X 5) + 81/4
Rearrange the terms: ({2+2})- 9/2) 2 = (5-9/2) 2
Equating RHS and LHS
Hence: 2 + 2 = 5
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All the best.
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