A = 3 × x + 3 x 11
B = 9 x x + 9×8
C = 2 x 4 + 4 xx
D = 5 x 6 + 6 xx
E = 5 x x - 5 x 12
F = 7xx-7x4
G = 10 x 310 x x
H=6x8-8xx