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  • 28-02-2019
  • Mathematics
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find f(-2) if f(x)=x^4+2x^2-1

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wegnerkolmp2741o
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  • 28-02-2019

Answer:

23

Step-by-step explanation:

f(x)=x^4+2x^2-1

Let x = -2

f(-2) = (-2)^4 +2(-2)^2 -1

       =16 +2*4-1

        =16+8-1

          24-1

            23

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