\(\left(5^{46}+5^{45}+5^{44}\right):\left(5^{39}.5^5\right)=5^{44}.\left(1+5+5^2\right):5^{44}=1+5+5^2=31\)
\(\left(12^{59}+12^{58}+12^{57}\right):\left(12^{56}+12^{57}+12^{58}\right)\)
=\(12^{57}.\left(12^2+12+1\right):\left[12^{56}.\left(1+12+12^2\right)\right]\)
=12
**** mình nha bạn !!!!!!!!!