" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
ax²+bx+c=0.....La suma de raíces será:=-b/a
En el problema:
(k+3)x² - (3k+4)x-5=0.....a=(k+3) y b= -3k-4)
Suma de raíces= -b/a.....como suman 4, entonces:
4 =-(-3k-4)/(k+3)
4=(3k+4)/(k+3)....multiplicando en aspa:
4(k+3)= 3k+4
4k+12=3k+4
4k-3k=4-12
k=-8