Retrouve la forme développée de:
3x (5x - 1) - (2x + 2)
O 15x2-5x + 2
O 15x2-5X-2
0 9x2 - 9x
0 9x2 + 3x
3x (5x - 1) - (2x + 2)
O 15x2-5x + 2
O 15x2-5X-2
0 9x2 - 9x
0 9x2 + 3x
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Réponse:
Bonjour,
3x×5x+3x-1-(2x×2)
15x²-3x-2x+2
15x²-5x-2
Bonne journée