Question

8x*2+17x+4
resolve aí

Answer 1

$8x^2+17x+4$

x = $\frac{-(+17)+/- \sqrt{(17)^2-4.8.4}}{2.8}$

x = $x= \frac{-17+/- \sqrt{289-128} }{16}$

x = $x= \frac{-17+/- \sqrt{161} }{16}$

x' = $\frac{-17=12,6}{16} = \frac{-4.4}{16} = \frac{-1}{4}$

x" = $\frac{-17-12.6}{16} = \frac{-29.6}{16} = 1,85$

 S = {$- \frac{1}{4} , 1,85}$ }