Question

Resolva as equações:
a)9x² + 6x+1=0
b)3x²-75=0
c) 2x²+6x=0
d)3x²=0

Answer 1

Resposta:

a)X=-1/3

b)x1=-5 x2=5

c)x1=-3 x2=0

d)x=0