Sagot :
bjr
A = 9 * 5 + 9 * 3a = 9 (5 + 3a) attention 9x3 = 27..
B = 4 * 4x - 4 * 3 = 4 (4x - 3) ok
C = x * 14x + x * 15 = x (14x + 15)
D = 9y * 7y - 9y * 3 = 9y (7y - 3)
et
E = 6b * 1 + 6b * 3b = 6b (1 - 3b)
bjr
A = 9 * 5 + 9 * 3a = 9 (5 + 3a) attention 9x3 = 27..
B = 4 * 4x - 4 * 3 = 4 (4x - 3) ok
C = x * 14x + x * 15 = x (14x + 15)
D = 9y * 7y - 9y * 3 = 9y (7y - 3)
et
E = 6b * 1 + 6b * 3b = 6b (1 - 3b)