1.

A function 'f' well defined AA x , y in R is such that f(1)=2, f(2)=8 and f(x+y)-kxy= f(x)+2y^(2), where 'k' is some constant then f(x) is

Answer»

`X^(2)`
`3X^(2)`
`2x^(2)`
`4x^(2)`

ANSWER :C


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