$f\left(-3\right)={\left(2\cdot \left(-3\right)-1\right)}^2=$   ${\left(-6-1\right)}^2=$  

$={\left(-7\right)}^2=\left(-7\right)\cdot \left(-7\right)=49$  

 

$f\left(-2\right)={\left(2\cdot \left(-2\right)-1\right)}^2={\left(-4-1\right)}^2=$  

$={\left(-5\right)}^2=\left(-5\right)\cdot \left(-5\right)=25$  

 

$f\left(-1\right)={\left(2\cdot \left(-1\right)-1\right)}^2={\left(-2-1\right)}^2=$  

$={\left(-3\right)}^2=\left(-3\right)\cdot \left(-3\right)=9$  

 

$f\left(0\right)={\left(2\cdot 0-1\right)}^2={\left(0-1\right)}^2=$  

$={\left(-1\right)}^2=\left(-1\right)\cdot \left(-1\right)=1$  

 

$f\left(1\right)={\left(2\cdot 1-1\right)}^2={\left(2-1\right)}^2=$  

$=1^2=1\cdot 1=1$  

 

$f\left(2\right)={\left(2\cdot 2-1\right)}^2={\left(4-1\right)}^2=$  

$=3^2=3\cdot 3=9$    

 

 

 

$x$	$-3$	$-2$	$-1$	$0$	$1$	$2$
$f\left(x\right)$	$49$	$25$	$9$	$1$	$1$	$9$