Répondre :
bonjour;
2t²y-6ty²+8tz
= 2t( ty -3y² +4z)
. (5x-10)(x+8)-7(x-2)
= 5( x-2) (x+8) -7( x-2)
= (x-2) ( 5x +40-7)
= (x-2) ( 5x+33)
bonjour;
2t²y-6ty²+8tz
= 2t( ty -3y² +4z)
. (5x-10)(x+8)-7(x-2)
= 5( x-2) (x+8) -7( x-2)
= (x-2) ( 5x +40-7)
= (x-2) ( 5x+33)