26.Utilizando a formula resolutiva de Bhaskara, determine as raízes das equações.

a)x2 - 4x + 4 = 9
b)x2 + 12x + 36 = 0
c)4x2 - 12x + 9 = 16
d)x2 - x + 1/4 = 25

27. Resolva as equações utilizando a fórmula de Bhaskara.

a)4x2 + 12x + 5 = 0
b)x2 + 10×/3 + 1 = 0
c)x2 + 13x + 40 = 0
d)x2 + 15x/2 + 9 = 0
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