Spadikam Chacko mashinum thetti

Spadikam Chacko mashinum thetti (a+b)^2 ="ba ba bbaa alla " ennu paranjathu thettanu.

(a+b)^2 = a^2+2ab+b^2

= aa+ab+ab+bb

= ba+ba+bb+aa

= "BA BA BBAA"

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