" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x^2+x^2+2x+1=61
2x^2+2x-60=0 /2
x^2+x-30=0
Fórmula:
-1 + - √1+120 / 2
1 + - √121 / 2
1 + - 11 / 2
a) 1 + 11 / 2= 12/2= 6
b) 1 - 11 / 2= -10/2= -5