Question:The value of `(8.94 xx 8.94 + 8.94 xx 3.56 xx 3.56)/(8.94 xx 8.94 + 8.94 xx 3.56 + 3.56 xx 3.56)` is : 

A `.538` 
B `5.38` 
C `.0538` 
D `53.8` 

+ Answer
B 

+ Explanation
Given Exp :

`((8.94)^3 - (3.65)^3)/((8.94)^2 + 8.94 xx 3.56 + (3.56)^2)`

`=((a^3 -b^3)/(a^2 + ab + b^2))`

`= (a - b)`

`= (8.94 - 3.56)`

`= 5.38`

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Irin Moni

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