Question

URGENTE ! MATEMÁTICA 1 ! NÚMERO 10 !!!!!!

Answer 1

Resposta:

$-3x^2+(n-5)x+(10-n)=0\\\\\\a) P=\frac{(c)}{(a)}=\frac{(10-n)}{(-3)}=\frac{2}{3} \Rightarrow 10-n=-2\Rightarrow n=12\\\\\\b) S=-\frac{(b)}{(a)}=-\frac{(n-5)}{(-3)}=-5 \Rightarrow n-5=-15 \Rightarrow n=-10$