Question

Dada a função : g(x) = - 3$x^{2}$x^{2}-5x+4

a) g(1/2)

Answer 1

g(x) = -3x^2 - 5x + 4; g(1/2) = -3.(1/2)^2 -5.(1/2) + 4; g(1/2) = -3.(1/4) -5/2 + 4; g(1/2) = -3/4 -5/2 + 4; g(1/2) = (-3 - 10+16)/4; g(1/2) = (16-13)/4; g(1/2) = 3/4