Bonjour,
M= 14z -21
N= 24x -54
P= 40 +24y
Q= 60 -36z
E=x² +3x +4x +12 = x² +7x +12
F= 2y² +8y +6y + 24 = 2y² +14y +24
G= 15z -18z² +20 -24z = -18z² - 9z +20
H= -21t +35t² +24 - 40t = 35t² -61t +24
Bonjour,
⬛ Développer et réduire :
⬜ M = 7(2z - 3)
⬜ M = 7 * 2z + 7 * ( - 3 )
⬜ M = 14z - 21
⚡ N = 6(4x - 9)
⚡ N = 6 * 4x + 6 * ( - 9)
⚡ N = 24x - 54
✨ P = 8(- 5 - 3y)
✨ P = 8 * ( - 5 ) + 8 * ( - 3y )
✨ P = - 40 - 24y
✨ P = - 24y - 40
☄️ Q = - 12(- 5 + 3z)
☄️ Q = - 12 * ( - 5 ) - 12 * 3z
☄️ Q = 60 - 36z
☄️ Q = - 362 + 60
️ E = (x + 4)(x + 3)
️ E = x * x + x * 3 + 4 * x + 4 * 3
️ E = x² + 3x + 4x + 12
️ E = x² + 7x + 12
F = (y + 3)(2y + 8)
F = y * 2y + y * 8 + 3 * 3 + 3 * 8
F = 2y² + 8y + 6y + 24
F = 2y² + 14y + 24
G = (3z + 4)(5 - 6z)
G = 3z * 5 + 3z * ( - 6z ) + 4 * 5 + 4 * ( - 6z )
G = 15z - 18z² + 20 - 24z
G = - 18z² - 9z + 20
H = ( - 7t + 8)(3 - 5t)
H = - 7t * 3 - 7t * ( - 5t ) + 8 * 3 - 40t
H = - 21t + 35t² + 24 - 40t
H = 35t² - 61t + 24
Bonne journée.
J'espère t'avoir aidé(e).