Question

tô precisando de ajuda pfv...​

Answer 1

O valor da imagem seria o resultado
a)
f(-1) = 2x^2 + 4
f(-1) = 2(-1)^2 + 4
f(-1) = 2 . (1) + 4
f(-1) = 2 + 4 = 6

b)
f(3) = x^2 - 6x + 5
f(3) = (3)^2 -6(3) + 5
f(3) = 9 - 18 + 5 = -4

c)
f(4) = -x^2 - x - 1
f(4) = (-4)^2 - (4) -1
f(4) = 16 -4 -1 = 11

d)
f(0) = 5x^2 - x + 2
f(0) = 5(0)^2 - (0) + 2
f(0) = 5 . 0 - 0 + 2 = 2

e)
f(-2) = 3x^2 - 2x + 7
f(-2) = 3(-2)^2 -2(-2) + 7
f(-2) = 3. 4 + 4 + 7 = 23

g)
f(0) = 8x^2 - 55x
f(0) = 8(0)^2 - 55(0)
f(0) = 8. 0 - 55. 0 = 0

h)
f(5) = x^2 - 5x +12
f(5) = (5)^2 - 5(5) + 12
f(5) = 25 - 25 + 12 = 12

i)
f(0) = 12x^2 - 333x - 2
f(0) = 12(0)^2 - 333(0) - 2
f(0) = 12 . 0 - 333 . 0 -2 = -2

j)
f(-1) = -4x^2 -4x + 5
f(-1) = -4(-1)^2 -4(-1) + 5
f(-1) = -4 . 1 + 4 + 5 = 5

k)
f(2) = 5x^2 -9x +6
f(2) = 5(2)^2 -9(2) +6
f(2) = 5.4 -18 + 6 = 8