A) X(2+26-7+2)=
=X(28-7+2)
=x(21+2)
=x*23=>14*23=322
B) a(41_8-13+13)=
=a(33-13+13)(se reduce - 13+13)
=a*33=>33*101=3333
C) x(19+24-16+1)
X(43-16+1)
X(27+1)
X*28=>11*28=308
D)22-5x-x-4=
=22-5*0-0-4
22-0-4
22-4=18
E)3a*2b=3*10-2*5=30-10=20
F)12x*4y*3=12*2*4*3*3=24*36=864
Sper ca te am ajutatttttttt!!!!
