Question

Identifique os coeficientes e se a equação a completa ou incompleta:

a)x2 = +3 - 3

b)2x2 = 5x=-6

c)3x2 - 3=x

d)-x2 - x=0

Answer 1

a)
x2 = +3 - 3
x² = 0
a = 1; b = 0; c = 0 (incompleta)

¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨

b)2x2 + 5x=-6

2x² + 5x + 6 = 0
a = 2; b = 5; c = 6 (completa)


¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨
c)3x2 - 3=x

3x² - x - 3 = 0
a = 3; b = - 1; c = - 3 (completa)

¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨
d)-x2 - x=0

- x² - x = 0
a = - 1; b = - 1; c = 0 (incompleta)