Bonsoir pouvez vous m aider je suis en 4 eme mais je n arrive pas a faire l exercice merci Exercice n°4: Développer puis réduire :
A=8 - 4(x - 3)
B = 2(3 – 4x) + 4(1 – 2x)
C = -2(3x + 1) - 3(x + 3)
D = 5(6x - 1)-(3 + 8x)
E = 2x(x + 4) + x(1 - x)
F = -x(2-x) + (x²- 2x)-(3x² - 4)
G = 3x² - (x²- 4x + 5) - 4x(x - 3)
H = (2x² - 7x + 4) - 4x(-3 + 2x)
I= 5x(-3x - 6) - (-15x²+ 18x - 6)​
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