" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x²+2x-4= 0
x²+2-4+1-1=0
x²+2-3=1
factorizando
(x+3)(x-1)=1
i) x+3 =1 ii) x-1 = 1
x=-1/3 x)=2
2. x²+9x=0
Factorizando
x(x+9)=0
i) x=0 ii) x+9=0
x= -9