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Answer Posted / priyanka
55*55*55+45*45*45/55*55-55*45+45*45
55^3+45^3/(55^2-55*45+45^2)=(55+45)=100
as we know a^3+b^3=(a+b)(a^2-ab+b^2)
so (a^3+b^3)/(a^2-ab+b^2)=a+b
here a=55 and b=45
so a+b=55+45=100
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