Sagot :
Bonjour
B=(5-2y)-(-3y+7)
B = 5 - 2y + 3y - 7
B = y - 2
D= (2r-5)(3r+2)-(r^+6)
D = 6r² + 4r - 15r - 10 - r - 6
D = 6r² - 12r - 16.
Bonjour,
B=(5-2y)-(-3y+7)
= 5-2y +3y -7
= y -2
D= (2r-5)(3r+2)-(r²+6)
6r² +4r - 15r -10 -r² -6
= 5r² -11r -16
Bonjour
B=(5-2y)-(-3y+7)
B = 5 - 2y + 3y - 7
B = y - 2
D= (2r-5)(3r+2)-(r^+6)
D = 6r² + 4r - 15r - 10 - r - 6
D = 6r² - 12r - 16.
Bonjour,
B=(5-2y)-(-3y+7)
= 5-2y +3y -7
= y -2
D= (2r-5)(3r+2)-(r²+6)
6r² +4r - 15r -10 -r² -6
= 5r² -11r -16