If x = -1 and x = 2 are extreme points of f(x)= x+ x^2+x, and are constants, then the value of ^2+2 is

MHT CET 2023 Mathematics question

If x = -1 and x = 2 are extreme points of , and are constants, then the value of is

Answer: (B)

. Extreme points need . At : ... (1). At : ... (2).

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Question ID VK-097475