Respostas

A melhor resposta!
2014-04-05T15:15:18-03:00
16 x^{2} -24x+5=0

Δ = 24² - 4.16.5 = 576 - 320 = 256

 x_{1} = \frac{24+ \sqrt{256} }{2.16} =\frac{24+ 16 }{32}= \frac{40}{32} = \frac{5}{4}

 x_{2} = \frac{24- \sqrt{256} }{2.16} =\frac{24- 16 }{32}= \frac{8}{32} = \frac{1}{4}


2 4 2