Question

Me ajudem nessa, pls

Answer 1

Resposta:

1.

i) a = 1, b = -4, c = 8

ii) a = 1, b = 0, c = -7

iii) a = 2, b = - 10, c = 0

iv) a= 10, b= 3, c= -1

v) a= 1, b= 2, c= -8

vi) a= 1, b= -3, c= -4

vii) a) a= -4, b=6, c=0

2.

a) x^2 + 6x + 9 = 0

b) 4x^2 - 6x + 2 = 0

c) 4x^2 - 25 = 0

d) -21x^2 + 7x = 0

3.

a) completa

b) completa

c) incompleta

d) incompleta

e) completa

f) incompleta