Resolva as equações do 2º grau, onde c=0 a) x² + 7x = 0 b) 3x² - 12x = 0 c) 2x² - 6x = 0
Resolva as equações do 2º grau, onde c=0a) x² + 7x = 0
b) 3x² - 12x = 0
c) 2x² - 6x = 0
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