Enable text based alternatives for graph display and drawing entry

Try another version of this question

Given the function ` f(x)=8 x^2 + 4 x - 4`. Calculate the following values:

`f(0)= `  
`f(2)= `  
`f(-2)= `  
`f(x+1)= `  
`f(-x)= `  

Get help: