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
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
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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