simplify (245×245×245+126×126×126)/(245×245-245×126+126×126)
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answer is 246.209097
answer is 246.209097
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let 245=a and 126=b
we have to put here a^3+b^3 formula
(245×245×245+126×126×126)/(245×245-245×126+126×126)=(a^3+b^3)/(a^2-ab+b^2)=[(a+b)(a^2-ab+b^2)]/(a^2-ab+b^2)=a+b=245+126=371..ans.
we have to put here a^3+b^3 formula
(245×245×245+126×126×126)/(245×245-245×126+126×126)=(a^3+b^3)/(a^2-ab+b^2)=[(a+b)(a^2-ab+b^2)]/(a^2-ab+b^2)=a+b=245+126=371..ans.
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