\frac{(931+138)^{2}+(931-138)^{2}}{(931 \times 931+138 \times 138)}=? – InterviewSolution

InterviewSolution

1.	\frac{(931+138)^{2}+(931-138)^{2}}{(931 \times 931+138 \times 138)}=?
Answer» ((931×931+2×931×138+138×138)+(931×931--2×931×138+138×138))/(931×931+138×138)=2(931×931+138×138)/(931×931+138×138)=2

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