Question

Equação de 2° grau incompleta ....
8x²=0

1x²-576=0

1x²-6400=0

Answer 1

a)
$8 x^{2} =0$

$x^{2} = \frac{0}{8}$

$x^{2} =0$

$x= \sqrt{0}$

x=0
S={0}

b)
$x^{2} -576=0$

$x^{2} =576$

$x= \sqrt{576}$

$x= \sqrt{ 2^{8}. 3^{2} }$

x=± 24

S={-24,+24}

c)

$x^{2} -6400=0$

$x^{2} =6400$

$x= \sqrt{6400}$

x= ± 80

S={-80,+80}