1.

If f(x) = 2x3 - 13x2 + 17x + 12 then find out the value of f(-2) & f(3). 

Answer»

f(x) = 2x3 - 13x2 + 17x + 12 

 f(-2) = 2(-2)3 - 13(-2)2 + 17 (-2) + 12 

 = - 16 - 52 - 34 + 12 = - 90 

f(3) = 2(3)3 - 13(3)2 + 17(3) + 12 

 = 54 - 117 + 51 + 12 = 0

 



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