bonsoir,
8x
t
x² +2t²+5x +3t
-y² +8y -5w +a
5y
0
3t²+2t
2a+3b = 2*1+3*-2 = 2-6 =-4
2a-3b = 2+6 = 8
-2 +10 = 8
-6 -7 = -13
