Question

Determine as raizes reais das equaçoes incompletasa) x²-5x=0b)-x²+12x=0c)5x²+x=0d)x²-9x=0e)x²-0=0f)25x²-1=0g)x²-64=0h)x²+16=0i)-7x²+28=0

Answer 1

Aqui estão as respostas.

a) x'=0 x"=5
b) x'=0 x"=12
c) x'=-1/5 x"=0
d) x'=0 x"=9
e) x=0
f) x'= -1/5 x"= +1/5
g) x'= -8 x"= +8
h) x= €R
i) x'= -2 x"= +2