Réponse :
Explications étape par étape
Bonjour
Developper :
Z = 3 (2x - 6) - (3 - 5x)
Z = 6x - 18 - 3 + 5x
Z = 11x - 21
Q = (5 - 2y) - (-3y + 7)
Q = 5 - 2y + 3y - 7
Q = y - 2
H = 4 (6 + z) + (z - 3) (2 - z)
H = 24 + 4z + 2z - z^2 - 6 + 3z
H = -z^2 + 9z + 18
I = (2t - 5) (3t + 2) - (t*t + 6)
I = 6t^2 + 4t - 15t - 10 - t^2 - 6
I = 5t^2 - 11t - 16
