Question

3. resolva as equações do segundo grau incompletas:
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Answer 1

Oie, Td Bom?!

a)

$x {}^{2} - 25 = 0$

$x {}^{2} = 25$

$x = ± \sqrt{25}$

$x = ±5$

b)

$x {}^{2} - 6 4 = 0$

$x {}^{2} = 64$

$x = ± \sqrt{64}$

$x = ±8$

Att. Makaveli1996