Respostas

2013-10-04T22:31:56-03:00
 f(x) = -2x² + 4x + 12 // Simplifica geral por 2

\frac{-b^2 -4ac}{4a}

\frac{-16 -4*-2*12}{-4*2}

\frac{-(16 +96)}{-8}

  \frac{-(112)}{-8}

YV = 14

2013-10-04T22:35:01-03:00