Resposta:
- 2x² - 6x = 0 ( - 1)
2x² + 6x = 0
x(2x + 6) = 0
x = 0
2x + 6 = 0
2x = - 6
x = - 6/2
x = - 3
Resp.: x = 0 e x = - 3
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Resposta:
- 2x² - 6x = 0 ( - 1)
2x² + 6x = 0
x(2x + 6) = 0
x = 0
2x + 6 = 0
2x = - 6
x = - 6/2
x = - 3
Resp.: x = 0 e x = - 3