C = 5(x2 – 2x – 1) +(4+ 6x – 3x2)



Pour mon dm svp


Sagot :

Bonjour,

C = 5(x² – 2x – 1) +(4+ 6x – 3x²)

= 5x² -10x -5 +4 +6x -3x²

= 2x²  -4x -1