Réponse :
x²+2x =x(x+2)
x²−2x =x(x−2)
5x²−10x =5x(x−2)
2(x+1)+(x+1)(x−5) =(x+1)(x−3)
3,7²-7,4 =37(x2−2)
-9xy+3y =3y(−3x+1)
-9x+3yx =3y(x−3)
Explications étape par étape
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Réponse :
x²+2x =x(x+2)
x²−2x =x(x−2)
5x²−10x =5x(x−2)
2(x+1)+(x+1)(x−5) =(x+1)(x−3)
3,7²-7,4 =37(x2−2)
-9xy+3y =3y(−3x+1)
-9x+3yx =3y(x−3)
Explications étape par étape