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lee-chapman_60ae6215a9e87
lee-chapman_60ae6215a9e87
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lee-chapman_60ae6215a9e87
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a) -3x²+9x = 0 .(-1) 3x²-9x = 0 3x(x-3) = 0 3x = 0 --> x = 0 x-3 = 0 --> x = 3
in
Resolva as seguintes equações do 2 grau, sendo U=R :?
Comment by
lee-chapman_60ae6215a9e87
May 2021
