Question

x²+x=0 ??????me ajueeeeeeeem!!!!

Answer 1

x²+x=0
x ( x + 1 ) = 0

x = 0

x + 1 = 0
x = - 1

Solução = { - 1 ; 0 }

Answer 2

x² +x +0
Δ= b²-4ac
Δ= 1² -4.1.0
Δ= 1

x= -b +/- √Δ / 2a
x= -1 +/- √1 / 2.1
x'= -1 +1 / 2
x'= 0/2
x'= 0

x''= -1 -1 / 2
x''= -2/2
x''= -1

Bons estudos!