Bonjour Aider moi svp je serai reconnaisant.... Pergunta de ideia deaminegilles7733

Guizoo Bonjour,

Exo 1 :

A = 8x² - 12x + 4x² + 16 - 2x - 7
A = 12x² - 14x + 9.

B = - 36 + 25x - 14x² + 7x² - 35x + 6 - 10
B = - 40 - 10x - 7x².

Exo 2 :

C = 3 + (x + 6)
C = 3 + x + 6
C = 9 + x.

D = 14 - (- x - 7)
D = 14 + x + 7
D = 21 + x.

E = 5x + ( - 9x² + 10) - (- 6x² + 2) + 12
E = 5x - 9x² + 10 + 6x² - 2 + 12
E = 5x - 3x² + 20.

Exo 3 :

F = 8(x - 3)
F = 8x - 24.

G = - 9x(3x - 5)
G = - 27x² + 45x.

H = (7x + 3)(x + 2)
H = 7x² + 14x + 3x + 6
H = 7x² + 17x + 6.

I = (4x + 1)(2 - 4x)
I = 8x - 16x² + 2 - 4x
I = 4x - 16x² + 2.

J = 7(2x + 4) - 7x - 4
J = 14x + 28 - 7x - 4
J = 7x + 24.

K = (2x + 1)(3x - 4) - x(6x - 5)
K = 6x² - 8x + 3x - 4 - 6x² + 5x
K = - 4.

J'espère t'avoir aidé.

2 votes Thanks 1

fransey A= 8x² - 12x + 4x² + 16 -2x - 7 = 12x² -14x +9
B = -36 + 25x - 14x² + 7x² - 35x + 6 -10 = -7x²-10x -40
C = 3 + (x+6) = 3 + x + 6 = 9 + x
D = 14 - (-x-7) = 14 + x + 7 = 21 + x
E = 5x + (-9x² + 10) - (-6x² +2) +12 = 5x - 9x² + 10 + 6x² - 2 + 12 = -3x² + 5x + 20

F = 8 ( x-3) = 8x - 24
G = -9x (3x-5) = -27x² + 45x
H = (7x+3) ( x+2) = 7x² + 14x + 3x +6 = 7x² + 17x + 6
I = (4x+1)(2-4x) = 8x - 16x² + 2 - 4x = -16x² + 4x +2
J = 7(2x+4) - 7x -4 = 14x + 28 - 7x - 4 = 7x + 24
K = (2x+1)(3x-4) -x(6x-5) = 6x² - 8x + 3x - 4 - 6x² + 5x = -4

L = 7x - 14 = 7 ( x - 2)
M = a² + 3a = a (a+3)
N = 4x² + 20x = 4x ( x + 5)

0 votes Thanks 1

aminegilles7733 Marc beaucoup

fransey de rien

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Aidez moi svp je ne comprend vraiment rien

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