Question:The value of `((343 xx 343 xx 343 + 257 xx 257 xx 257)/(343 xx 343 - 343 xx 257 + 257 xx 257))` is : 

A `8600` 
B `800` 
C `600` 
D `2600` 

+ Answer
C 

+ Explanation
Given  Exp   ,

`= ((343)^3 + (257)^2)/((343)^2 - 343 xx 257 + (257)^2)`

`= ((a^3 + b^3)/(a^2 - ab + b^2))`,`where a = 343 and b = 257`

`= (a + b)`

`= (343 + 257)`

`= 600`.

+ Report

Irin Moni

Editor, VCampus

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