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anthxkingg
@anthxkingg
January 2021
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le petit 1,2, et 3 svp c'est urgent
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GGZ
1.G=(3x-2)
²+(3x-2)(2x+1)
G=9x²-12x+4+6x²+3x-4x-2
G=15x²-13x+2
2. G=(3x-2)²+(3x-2)(2x+1)
G=(3x-2)*(3x-2) + (3x-2)*(2x+1)
G=(3x-2) [(3x-2)+(2x+1)]
G=(3x-2)(3x-2+2x+1)
G=(3x-2)(5x-1)
3.(3x-2)(5x-1)
D'après le théorème du produit nul (écris le entièrement)
3x-2=0 ou 5x-1=0
3x=2 ou 5x=1
x=2/3 ou x=1/5
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G=9x²-12x+4+6x²+3x-4x-2
G=15x²-13x+2
2. G=(3x-2)²+(3x-2)(2x+1)
G=(3x-2)*(3x-2) + (3x-2)*(2x+1)
G=(3x-2) [(3x-2)+(2x+1)]
G=(3x-2)(3x-2+2x+1)
G=(3x-2)(5x-1)
3.(3x-2)(5x-1)
D'après le théorème du produit nul (écris le entièrement)
3x-2=0 ou 5x-1=0
3x=2 ou 5x=1
x=2/3 ou x=1/5