Question

Qual a responta me ajudeeeem por favor F(x)=2x2-6x+5=0

Answer 1

F(x) = 2x^2 - 6x + 5 = 0
a = 2 ; b = - 6 ; c = 5

FORMULA DELTA :
~~~~~~~~~~~~~~~~~
D = b^2 - 4 a c
D = (-6)^2 - 4 (2) (5)
D = 36 - 8 (5)
D = 36 - 40
D = - 4

Quando nao existe raiz quadrada vamos a calcular as cordenadas do vertice aplicaremos as seguinte formula :

Xv = - b /2a

Xv = - (-6)/2(2)

Xv = 6/4..(÷2)

Xv = 3/2

^^^^^^^^^^^^^^^^^^^^

Yv - D/4a

Yv = - (-4)/4(2)

Yv = 4/8..(÷4)

Yv = 1/2