Veuillez me remplir cela merci

A = 7/3(6x+3) + 5/2(4-2x)
A = 14x+7+10-x
A = 13x+17

B = 4(1-7y) + (4y-5)(y-1)
B = 4-28y + (4y²-4y-5y+5)
B = 4-28y+4y²-9y+5
B = 4y²-37y+9

C = 3t(t+1) + (5+t)(t-2)
C = 3t²+3t + (5t-10+t²-2t)
C = 3t²+3t+3t-10+t²
C = 4t²+6t-10

D = (4k-1)(9+k) - 9k(10-3k)
D = 36k+4k²-9-k - (90k-27k²)
D = 35k+4k²-9-90k+27k²
D = 31k²-55k-9

E = (m+2)(8+3m) - 2(1-m)(m-7)
E = 8m+3m²+16+6m-2(m-7-m²+7m)
E = 14m+3m²+16-2(8m-7-m²)
E = 14m+3m²+16-16m+14+2m²
E = 5m²-2m+30