Question

Ecuații
1) 6×+1=7
2) ײ+2×+1=0​

Answer 1

 Salutare!

Rezolvare:

1) 6x+1=7 |-1

6x=6 | :6

x=1

2) x²+2x+1=0

x²+x+x+1=0

x(x+1)+(x+1)=0

(x+1)(x+1)=0

(x+1)²=0 |√

x+1=0 |-1

x= -1

 Cu drag!