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Joooliew
@Joooliew
May 2019
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Bonjour à tous je voudrais que vous m'aidiez sur l'exercice 60 svp merciiii d'avance
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Verified answer
Bonjour,
* = multiplier
1) x*x +x*-2 -1*x -1*-2 = calcules, réduis
2) (x*2x + x*4 + 3*2x + 3*4)-(10x+12) = finis, calcules, réduis
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joooliew
donc cest égal a quoi ?
joooliew
oui aussi
joooliew
nn j'ai pas envie
mjhansberqueowmdp7
Développe
(x-1)(x-2)-x²=x²-2x-x+2-x²
-3x+2
(x+3)(2x+4)-2(5x+6)
2x²+4x+6x+12-10x-12= 2x²
tu trouvais ça difficile?
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joooliew
mdrr oui autant te dire je suis vraiment très nul en maths
joooliew
mercxii
joooliew
oui aussi
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Verified answer
Bonjour,* = multiplier
1) x*x +x*-2 -1*x -1*-2 = calcules, réduis
2) (x*2x + x*4 + 3*2x + 3*4)-(10x+12) = finis, calcules, réduis
(x-1)(x-2)-x²=x²-2x-x+2-x²
-3x+2
(x+3)(2x+4)-2(5x+6)
2x²+4x+6x+12-10x-12= 2x²
tu trouvais ça difficile?