A= (2x + 6)( 3% - 7)
C = (x-6)(x * 6)
E = - (x + 9)
G= (4 - 5x) + (7x-3)
B = (5x + 6)
D = (5x + 4)(5x - 4)
F = (5x+3) - (2x-7)
H = 3(2x + 6) - 4(5x + 4)
Merci