Question

Determine o valor da soma e do produto das raizes da equaçao 4x²+8x-12=0

Answer 1

$4x^2+8x-12=0\ \to\ a=4,\ b=8,\ c=-12$

$\boxed{S=-\dfrac{b}{a}}\ \to\ S=-\dfrac{8}{4}\ \to\ \boxed{S=-2}$

$\boxed{P=\dfrac{c}{a}}\ \to\ P=\dfrac{(-12)}{4}\ \to\ \boxed{P=-3}$