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PLEASE HELP ME!!!! Given that f(x)=x+2 and g(x)=3x^2-1. What is (fg)(x)? Answer: ??? PLEASE EXPLAIN YOUR REASONING!!
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PLEASE HELP ME!!!!

Given that f(x)=x+2 and g(x)=3x^2-1. What is (fg)(x)?

Answer: ???
PLEASE EXPLAIN YOUR REASONING!!

User Jasmeen
by
5.4k points

1 Answer

4 votes
  • (fg)(x)=f(x)×g(x)
  • (x+2)(3x²-1)
  • x(3x²-1)+2(3x²-1)
  • 3x³-x+6x²-2
  • 3x³+6x²-x-2

Done!

User Struberg
by
6.1k points
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