Question

a)-3×[1-3×(-3+2×5)]
b)-5×[-1+2×(-7+3×5)+6]
c)-1×[-8×(-3+2×4)+6]-11
d)-2×[-5-1×(-3+2×1)]-7×(-1)
calculati rezolvare completa

Answer 1

a)-3×[1-3×(-3+2×5)]=
-3x(1-3x7)=
-3x(-20)=60
b)-5×[-1+2×(-7+3×5)+6]=
-5x(-1+2x8+6)=
-5x21=-105
c)-1×[-8×(-3+2×4)+6]-11=
-1x[-8x(-3+8)+6]-11=
-1x(-8x5+6)-11=
-1x(-34)-11=23
d)-2×[-5-1×(-3+2×1)]-7×(-1)=
-2[-5-1x(-3+2)]+7=
-2x[-5-1x(-1)]+7=
-2x(-5+1)+7=
-2x(-4)+7=15