Réponse :
Explications étape par étape
Bonjour
Réduire si possible :
A = 2 * (-x^2)
A = -2x^2
B = -7 * 9t
B = -63t
C = 8r * 5r
C = 40r^2
D = 7t^2 - (-7t)
D = 7t^2 + 7t
E = 6d^2 - 9d^2
E = (6 - 9)d^2
E = (-3d^2)
F = -6 * (-7k)
F = 42k
G = 2b * (-7b)
G = -14b^2
H = -9v + 2v
H = (-9 + 2)v
H = (-7v)
I = -6v * 7v
I = (-42v^2)
