bonjour vous pouvez m'aider svp merci d'avance​

Réponse :5

P= 3-10x-2

= 1-10x

R= 5-7x+3

= 8-7x

Q= -x+6-7

= -x-1

S= -9x+4+8

= -9x+12

T= 6x+9+8x+2

= 14x+11

6

U= -5x+7-8+3x+x

= -x-1

V= 9x+5-x-4x+2

= 4x+7

W= 4x²-2x²+3x-1-6x+7

= 2x²-3x+6

7

X=3y+5y²-10y

= -7y+5y²

Y= 9-24+32y

= -15+32y

Z= 10y-6y-21

= 4y-21