The output of the input x = 2 is 25
To get the output, we simply will substitute the value of 2 into the equation
We will represent every x by 2
We have this as;
[tex]\begin{gathered} f(2)=2(2)^4-2^3\text{ + 5(2) - 9} \\ =\text{ 32 - 8 + 10 - 9} \\ =\text{ 25} \end{gathered}[/tex]