D = -3x (-2x + 5) E = -4(9 - 2x) - (9x - 7) aidez moi svp
Mathématiques
laklass
Question
D = -3x (-2x + 5)
E = -4(9 - 2x) - (9x - 7)
aidez moi svp
E = -4(9 - 2x) - (9x - 7)
aidez moi svp
1 Réponse
-
1. Réponse hirondelle52
Bonjour,
D = -3x (-2x + 5)
= 6x² -15x
E = -4(9 - 2x) - (9x - 7)
= -36 +8x -9x +7
= -x -29