Respuesta:
x1 = 0 x2 = 1/7
Explicación paso a paso:
[tex]21 x^{2} - 3x = 0\\Factor izamos:\\3x(7x - 1) = 0\\\\3x1 = 0 \\ x1 = 0/3 \\ x1 = 0\\\\(7x2 - 1) = 0 \\ 7x2 = 1 \\ x2 = 1/7[/tex]
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Respuesta:
x1 = 0 x2 = 1/7
Explicación paso a paso:
[tex]21 x^{2} - 3x = 0\\Factor izamos:\\3x(7x - 1) = 0\\\\3x1 = 0 \\ x1 = 0/3 \\ x1 = 0\\\\(7x2 - 1) = 0 \\ 7x2 = 1 \\ x2 = 1/7[/tex]