Question

F (x) = x² - x - 12
F (x) = 2x² + 12x + 18

Answer 1

Resposta:

f (x) = x^2 - x - 12

A = b^2 -4ac

A = (-1)^2 - 4.1. (-12)

A = 1 + 48

A = 49

x'= 1 + 7/2

x'= 8/2

x'= 4

x"= 1 - 7/2

x"= 6/2

x"= 3

V = (1/2 e 49/4)

f (x) = 2x^2 + 12x + 18

A= b^2 -4ac

A= 12^2 -4.2.18

A= 144 - 144

A= 0

x'= -12 + 0/2

x'= -3

x"= -12 + 0/2

x"= -3

V= (-3, 0)