Question

If ƒ (x ) = 3x2 - x, find ƒ (-2).

Answer 1

f(x)=3x*2 so f(-2)=-12 but if you meant f(x)=3*2. then f(-2)=6.

Answer 2

so i think this function wan be

f(x ) = 3x^2 -x

so to calcule f(-2) just you need substitute the -2 in place of x inside this equation and make the calcule

hope helped understandably easy