Answer:
f(-2) is 14.
Step-by-step explanation:
We have been given the function:
[tex]f(x)=3x^2-x[/tex]
We have to find f(-2)
That means put x= -2 in the given function we get:
[tex]3(-2)^2-(-2)[/tex]
After simplification we will get:
[tex]12+2[/tex]
After further simplification we will get the required result:
[tex]14[/tex]
Hence, [tex]f(-2)\text{is}14[/tex]