a) 0,02731−(−61)−2+2560,75−3−1+5,50=
=((0,3)3)31−(−6)2+(28)43−31+1=(0,3)3⋅31−36+28⋅43+32=
=0,3−36+26+32=103−36+64+32=−35107+64+32=
=28103+32=28309+3020=283029
b) ((43)0)−0,5−7,5⋅4−23−(−2)−4+810,25=
=1−21−7,5⋅(22)−23−2−4+(34)41=1−7,5⋅22⋅(−23)−(21)4+34⋅41=
=1−7,5⋅2−3−161+31=1−721⋅(21)3−161+3=
=1−215⋅81−161+3=1−1615−161+3=1−1+3=3
c) (2731⋅832⋅3252⋅8143)21=((33)31⋅(23)32⋅(25)52⋅(34)43)21=
=(33⋅31⋅23⋅32⋅25⋅52⋅34⋅43)21=(31⋅22⋅22⋅33)21=(3⋅33⋅22⋅22)21=
=(31+3⋅22+2)21=(34⋅24)21=((3⋅2)4)21=(64)21=64⋅21=62=36
d) (((3−21⋅2−31):(3−43⋅2−65)):(864−41))−2=(3−43⋅2−653−21⋅2−31:864−41)−2=
=(3−43⋅2−653−42⋅2−62:864−41)−2=((3−42−(−43)⋅2−62−(−65)):864−41)−2=
=((3−42+43⋅2−62+65):864−41)−2=((341⋅263):864−41)−2=
=((341⋅221):864−41)−2=((33⋅25)−41341⋅221)−2=((33)−41⋅(25)−41341⋅221)−2=
=(33⋅(−41)⋅25⋅(−41)341⋅221)−2=(3−43⋅2−45341⋅242)−2=(341−(−43)⋅242−(−45))−2=
=(341+43⋅242+45)−2=(31⋅247)−2=3−2⋅(247)−2=(31)2⋅247⋅(−2)=
=91⋅2−414=91⋅2−342=91⋅2−321=91⋅(21)321=91⋅(21)3⋅(21)21=
=91⋅81⋅21=721⋅21=7221=7221⋅22=72⋅2⋅22=
=72⋅22=1442