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6 votes
6 votes
F(x)=x²-1, g(x)=2x+1 ??
1. FoG
2.GoF​

User Nullqube
by
2.4k points

2 Answers

13 votes
13 votes
I hope this helps you :)
F(x)=x²-1, g(x)=2x+1 ?? 1. FoG 2.GoF​-example-1
User Edmond Wang
by
2.8k points
20 votes
20 votes

Answer:

1) 4x² + 4x

2) 2x² - 1

Step-by-step explanation:

in these type of questions, we go right to left serially in function

given:

  • f(x)=x²-1
  • g(x)=2x+1

1)

fg(x)

f(2x+1)

(2x+1)²-1

4x² + 4x + 1 -1

4x² + 4x

2)

gf(x)

g(x²-1)

2(x²-1) + 1

2x² - 2 + 1

2x² - 1

User Marta
by
3.1k points
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