Giải thích các bước giải:
b)
$-10/3^{5}$ * $-6/4^{4}$
=$-10/3^{5}$*$-3/2^{4}$
=($-10^{5}$ *$-3^{4}$) / $3^{5}$*$2^{4}$
= ($-10^{4}$ *$-10^{1}$*$-3^{4}$) /$3^{4}$*$3^{1}$*$2^{4}$
=$-5^{4}$ *$-10^{1}$*-1
=$-5^{4}$ *-5*2*-1
=$-5^{5}$ *-2
c)
=$12^{2}$ *12+3*$12^{2}$+$3^{3}$ /$10^{2}$
=$12^{2}$ *(12+3)+$3^{3}$ /$10^{2}$
=$12^{2}$ *15+$3^{3}$ /$10^{2}$
=$12^{2}$ *15/$10^{2}$ +$3^{3}$ /$10^{2}$
=$12^{2}$ *3*5/$10^{2}$ +$3^{3}$ /$10^{2}$
=12*12*3*5/10*10+$3^{3}$/$10^{2}$
=12*12*3/10*2+$3^{3}$ /$10^{2}$
=12*6*3/10+$3^{3}$ /$10^{2}$
=6*6*3/5+$3^{3}$ /$10^{2}$
=108/5 +27/100
=2160/100+27/100
=2187/100=21,87
