October 2020 0 50 Report
Obtenha as raízes das equações a seguir: a) x² - 36 = 64
b) (x + 12) . (-2x +6) = 0
c) 3x² - 243 = 0
d) x² + 40x = 0
e) 16x² - 49 = 0
f) x² + 25 = 0

E, por favor, tentem explicar, não quero só respostas, quero entender e aprender. ;x
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