Question

a) x2 − 9 = 0
b) x2 − 4 = 0
c) x2 − 36 =0
d) x2 + 9 = 0
e) x2 − 16 = 0
f) − x2 + 4 = 0
g) x2 − 3 = 0
h) − x2 + 81 = 0

Answer 1

Resposta:

a)×= +-3

b)x=+-2

c)x=+-6

d)x= nao tem raiz reais

e)×=+-4

f)x=+-2

g)x=V3

h)x=+-9