Respuesta:
carta D
Explicación paso a paso:
[tex]x_v=\frac{-b}{2a}\\\\2=\frac{-(-12)}{2(k -2)}\\\\4(k-2)=12 \\\\k-2=\frac{12}{4}\\\\k-2=3\\\\k=3+2\\\\k=5[/tex]
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Respuesta:
carta D
Explicación paso a paso:
[tex]x_v=\frac{-b}{2a}\\\\2=\frac{-(-12)}{2(k -2)}\\\\4(k-2)=12 \\\\k-2=\frac{12}{4}\\\\k-2=3\\\\k=3+2\\\\k=5[/tex]