" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
x+1=0
x=-1
Ahora reemplazo:
x² + 2x +a = 0
(-1)²+2(-1) + a= 0
1 -2 +a = 0
a-1=0
a=1