Discussion

Explanation:

A function is 

Condition 1: Even when, f(x) = f(-x)

Condition 2: Odd when, f(x) = -f(-x)

Here, f(x) = 2x2 + 3x3 and 

f(-x) = 2(-x)2 + 3(-x)3 = 2x2 -3x3

f(x) satisfies neither of the two conditions; hence it is neither an even nor an odd function. 

[Note: When an even and an odd function are added / subtracted, the resulting function is neither even nor odd.]

Hence, 3.

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