Question

Calcule o valor de H (x) = 4x² - 6x + 3 para:

a) x = -2
b) x = 0
c) x = 3

Answer 1

h(x) = 4x² - 6x + 3

a) x = -2

h(-2) = 4.(-2)² - 6.(-2) + 3
h(-2) = 4.4 + 12 + 3
h(-2) = 16 + 12 + 3
h(-2) = 16 + 15
h(-2) = 31

b) x = 0

h(0) = 4.(0)² - 6.(0) + 3
h(0) = 4.0 - 0 + 3
h(0) = 0 - 0 + 3
h(0) = 3

c) x = 3

h(3) = 4.(3)² - 6.(3) + 3
h(3) = 4.9 - 18 + 3
h(3) = 36 - 15
h(3) = 21