Question

× la a 2 + 4× +4 =0
9 × la a 2 - 6 ×+1=0
× la a 2 +2×+3=0
urgent va roggg

Answer 1

Intrebare:

1. x= -2

Rezolvare:

Noi avem: x la a 2 +4x +4 = 0

=>x la a 2+ 2x+2x+4=0

=>x (x+2)+2 (x+2)=0

=>(x+2)(x+2)=0

=>(x+2) la a2 =0

=> x= - 2