1/ P1 = 3x+1
2/ P2 = 2x+2
3/ P1-P2 = 3x+1-(2x+2) = 3x+1-2x-2 = x-1
4/ Positif ou nul
5/ P1>P2
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1/ P1 = 3x+1
2/ P2 = 2x+2
3/ P1-P2 = 3x+1-(2x+2) = 3x+1-2x-2 = x-1
4/ Positif ou nul
5/ P1>P2