Calcul litteral. Développer et réduire les expressions suivantes :
Mathématiques
xxcharlenexx
Question
Calcul litteral. Développer et réduire les expressions suivantes :
2 Réponse
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1. Réponse JingerSong
A = 5x - 45
B = -3y - 6
C = 6x + 30
D = 9x - 54
E = -12a - 6
F = -6x + 10
G = -48x - 8
H = 14a - 21
M = 15x - 21 - 12x = 3x - 21
N = 35 y - 55 + 8y = 43y - 55
O = 2x + 6 - 7 = 2x -1
P = 5 + 12x + 32 = 12x + 37
Q = 14x² + 6x
R = - 20x² - 15x
S = 18b² - 36b
T = -24x² + 9x -
2. Réponse herbert
A= 5 (x - 9) B= -3 (4 + 2) C= 6 (x + 5) D= 9 (x - 6) E= -3 (4a - 2)
= 5x - 45 = -12 + 2 = -10 = 6x + 30 = 9x - 54 = -12a + 6
F= 2 (-3x + 5) G= 6 (x + 5) H= 7 (2a - 3) M= 3 (5x - 7) - 12x
= -6x + 10 = -48x - 8 = 14a - 21 = 15x - 21 - 12x = 3x - 21
N= 5 (7y - 11) + 84 O= 2 (x + 3) - 7 P= 5 + 4 (3x - 8)
= 35y - 55 + 84 = 35y - 29 = 2x + 6 - 7 = 2x - 1 = 9 (3x - 8) = 27x + 72
Q= 2x (3 + 7x) R= -5x (3 + 4x) S= 9b (-4 + 2b) T= -3x (-3 + 8x)
= 6x + 14x = 20x = -15x - 20x² = -36b + 18b² = 9x - 24x²