Question

dada a função g(x)= 2x² -6x -4 calcule a) g(0) +g(4) b) g(1/2) -g(1)

Answer 1

g(x) = 2x² - 6x - 4

a) g(0) + g(4)
[2(0)² - 6(0) - 4] + [2(4)² - 6(4) - 4]
[-4] + [4]
= 0

b) g(1/2) - g(1)
[2(1/2)² - 6(1/2) - 4] - [2(1)² - 6(1) - 4]
[-6,5] - [-8]
= 1,5

Answer 2

a) 0
b)+5
g(0)=2*0²-6*0-4
g(0)= -4
-
g(4)=2*4²-6*4-4
g(4)=4
S=-4+4
S=0
----------------------------------------------------------
g(1/2)=2*1/2²-6*1/2-4
g(1/2)=-3
+
g(1)=2*1²-6*1-4
g(1)=-8
S=-3+8
S=+5