webbrachel74 webbrachel74
  • 25-10-2018
  • Mathematics
contestada

Find f(g(x)) if f(x) = 3x + 1 and g(x) = x2 - 1.

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wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 25-10-2018

Substitute g(x) into f(x) every place you see an x

3(g(x) )+1

3(x^2-1) +1

distribute

3x^2 -3 +1

combine like terms

3x^2 -2

Answer:  3x^2 -2


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