Répondre :
1) f(x) = 2x²-x-3
f(0) = 2x0-0-3
f(0) = -3
2) f(-1) = 2x(-1)-(-1)-3
f(-1) = -1 + 1 -3
f(-1) = -3
f(0) = 2x0-0-3
f(0) = -3
2) f(-1) = 2x(-1)-(-1)-3
f(-1) = -1 + 1 -3
f(-1) = -3