Question

Tính phép tình lũy thừa sau:

5⁵ .5⁶

7⁶ .7¹²

12⁸ : 114

64.8⁶⁴

125 .5⁹

 

Answer 1

\(5^5.5^6=5^{5+6}=5^{11}\)
\(7^6.7^{12}=7^{6+12}=7^{18}\)
Sửa đề: \(12^8:144=12^8:12^2=12^{8-2}=12^6\)
\(64.8^{64}=8^2.8^{64}=8^{2+64}=8^{66}\)
\(125.5^9=5^3.5^9=5^{3+9}=5^{12}\)

Answer 2

\(5^5\cdot5^6=5^{5+6}=5^{11}\)

\(7^6\cdot7^{12}=7^{6+12}=7^{18}\)

\(64\cdot8^{64}=8^2\cdot8^{64}=8^{66}\)

\(125\cdot5^9=5^3\cdot5^9=5^{12}\)