Assignment 7.4

Use the following functions to simplify.

 $f\left(x\right)=3x+1$  
 $g\left(x\right)=x^2$  

 $f\left(2\right)-g\left(4\right)$  

Use the following functions to simplify.

 $f\left(x\right)=3x+1$  
 $g\left(x\right)=x^2$  

 $f\left(1\right)\cdot g\left(1\right)$  

Use the following functions to simplify.

 $f\left(x\right)=3x+1$  
 $g\left(x\right)=x^2$  

 $f\left(5\right)+g\left(-2\right)$  

Use the following functions to simplify.

 $f\left(x\right)=3x+1$  
 $g\left(x\right)=x^2$  

 $f\left(g\left(3\right)\right)$  

Use the following functions to simplify.

 $f\left(x\right)=2x-4$  
 $g\left(x\right)=x-1$  

 $f\left(x\right)-g\left(x\right)$  

•  $x-3$  

•  $x-5$  

•  $3x-3$  

•  $3x-5$  

Use the following functions to simplify.

 $f\left(x\right)=2x-4$  
 $g\left(x\right)=x-1$  

 $f\left(x\right)\cdot g\left(x\right)$  

•  $2x^2-6x+4$  

•  $-4x+4$  

•  $2x^2+2x-4$  

•  $3x+4$  

Use the following functions to simplify.

 $f\left(x\right)=2x-4$  
 $g\left(x\right)=x-1$  

 $f\left(x\right)+g\left(x\right)$  

•  $3x-5$  

•  $3x-3$  

•  $x-5$  

•  $x-3$  

Use the following functions to simplify.

 $f\left(x\right)=2x-4$  
 $g\left(x\right)=x-1$  

 $f\left(g\left(x\right)\right)$  

•  $2x-6$  

•  $2x+2$  

•  $2x-5$  

•  $2x+4$  

Use the following functions to simplify.

 $f\left(x\right)=x^2$  
 $g\left(x\right)=4x-9$  

 $\frac{f\left(x\right)}{g\left(x\right)}$  

•  $\frac{x^2}{4x-9}$  

•  $\frac{4x-9}{x^2}$  

•  $\frac{x}{4}-\frac{x^2}{9}$  

•  $4x-\frac{x^2}{9}$  

Use the following functions to simplify.

 $f\left(x\right)=x^2$  
 $g\left(x\right)=4x-9$  

 $f\left(x\right)-g\left(x\right)$  

•  $x^2-4x+9$  

•  $x^2-4x-9$  

•  $x^2+4x+9$  

•  $x^2+4x-9$