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1. Let f(x)=3x+2 and g(x)=x^2   -5x-1. Find f(g(x)). 

 

 

2. Let f(x)=3x^2  -4x. Find the constant k such that f(x)=f(k-x) for all real numbers x. 

 Feb 1, 2021
 #1
avatar+119773 
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1. Let f(x)=3x+2 and g(x)=x^2   -5x-1. Find f(g(x)). 

 

We are putting   g into f  

 

3 ( x^2 - 5x  - 1) + 2   =   

 

3x^2 -15x  - 3  +  2   =

 

3x^2  - 15x  - 1

 

 

cool cool cool

 Feb 1, 2021

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