127 : 67 = ( 12:6)7 = 27
275 : 813 = ( 33)5 : ( 34)3 = 315 : 312 = 315-12 = 33
183 : 93 = ( 18:9)3= 23
1253: 254= ( 53)3: ( 52)4= 59 : 58 = 59-8 = 5
12 mũ 7 : 6 mũ 7 = 128
27 mũ 5 :81 mũ 3=27
18 mũ 3 : 9 mũ 3=8
125 mũ 3 : 25 mũ 4=5
127 : 67 = (12 : 6)7 = 27
275 : 813 = (33)5 : (34)3 = 315 : 312 = 3(15 - 12) = 33
183 : 93 = (18 : 9)3 = 23
1253 : 254 = (53)3 : (52)4 = 59 : 58 = 5(9 - 8) = 5
\(12^7:6^7=\left(12:6\right)^7=2^7\)
\(27^5:81^3=\left(3^3\right)^5:\left(3^4\right)^3=3^{15}:3^{12}=3^{15-12}=3^3\)
\(18^3:9^3=\left(18:9\right)^3=2^3\)
\(125^3:25^4=5\)
12^7:6^7
=(12:6)^7
=2^7
=128
27^5:81^3
=(3^3)^5:(3^4)^3
=3^15:3^12
=3^3
=27
tạm thời làm 2 câu khi nào t_i_c_k thì làm tiếp
\(12^7:6^7=\left(12:6\right)^7=2^7\)
\(27^5:81^3=\left(3^3\right)^5:\left(3^4\right)^3=3^{15}:3^{12}=3^3\)
\(18^3:9^3=\left(18:9\right)^3=2^3\)
\(125^3:25^4=\left(5^3\right)^3:\left(5^2\right)^4=5^9:5^8=5\)
12^7 : 6^7=(12 : 6)^7 =6^7 =279936
27^5 : 81^3 =(3^3)^5:(3^4)^3 = 3^3.5 : 3^4.3 =3^15 :3^12=3^15-12=3^3=27
18^3 :9^3=(9.2)^3:9^3= 2
125^3:25^4 = (5^3)^ 3: (5^2)^4 = 5^3.3 : 5^2.4=5^9:5^8=5^9-8=5^1=1