October 2020 0 130 Report
Bonjour pouvez vous m'aider svp, je comprends rien Mercii beaucoup à ceux qui m'aideront ! 3*(-a) =
- 7*(-a) =
4a*(-9a) =

x - 1 + 3x + 4 =
5x² + x - 7x² + 5x - 11 =
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