S'IL VOUS PLAIT LE 3 ET LE 4

d=10a+40
E= 2z3 -8z2+2z
F= 9z2+3z+12z+4=9z2+15z+4
G= -16z2+20z+20z-25=-16z2+40z-25

A= 42/3 x +21/3+20/2-10/2x=14x+17-5x=9x+17
B=4-28y+4y2-4y-5y=4y2-37y+9
C=3t2+3t+5t-10+t-2=3t2+9t-12
D= 36K+4k2-9-k-90k+27k2=31k2-55k-9
E= 8m+3m2+16+6m-2(m-7-m2+7m)=8m+3m2+16+6m-2m+14+2m2-14m=5m2-2m+30