Question

if f(x) = 2x2 - x, find f(-3).

Answer 1

f(x) = 2x^2 - x
if x=-3

f(-3) = (2*(-3)^2) - (-3)
f(-3) = (2*9) + 3
f(-3) = 18 + 3
f(-3) = 21

Answer 2

Answer: 21

Step-by-step explanation: because i got it right