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A = 16 x² + 32 x + 16 x + 32
= 16 x² + 48 x + 32
B = 3 x² + 7 x - 30 x - 70
= 3 x² - 23 x - 70
C = 20 x² - 55 x - 32 x + 88
= 20 x² - 87 x + 88
d = - 3 x² + 39 x + 6 x - 78
= - 3 x² + 45 x - 78
Réponse:
1. A =16x^2 + 32x + 16x + 32 = 16x^2 + 48x +32
2. B =3x^2 + 7x - 30x - 70 = 3x^2 - 23x - 70
3. C = 20x^2 - 55x - 32x + 88 = 20x^2 - 87x + 88
4. D = -3x^2 + 36x + 6x -78 = -3x^2 + 42x - 78
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A = 16 x² + 32 x + 16 x + 32
= 16 x² + 48 x + 32
B = 3 x² + 7 x - 30 x - 70
= 3 x² - 23 x - 70
C = 20 x² - 55 x - 32 x + 88
= 20 x² - 87 x + 88
d = - 3 x² + 39 x + 6 x - 78
= - 3 x² + 45 x - 78
Réponse:
1. A =16x^2 + 32x + 16x + 32 = 16x^2 + 48x +32
2. B =3x^2 + 7x - 30x - 70 = 3x^2 - 23x - 70
3. C = 20x^2 - 55x - 32x + 88 = 20x^2 - 87x + 88
4. D = -3x^2 + 36x + 6x -78 = -3x^2 + 42x - 78