Question

[Huỳnh Thị Minh Huyền]

viết các biểu thức sau dưới dạng aⁿ

a)\(9.3^3.\frac{1}{81}.3^2\)

b)\(4.2^5:\left(2^3.\frac{1}{16}\right)\)

c)\(3^2.2^5.\left(\frac{2}{3}\right)^2\)

d)\(\left(\frac{1}{3}\right)^2.\frac{1}{3}.9^2\)

Answer 1

[Iruko]

d,\(=\frac{1}{3^2}\cdot\frac{1}{3}\cdot\left(3^2\right)^2=\frac{3^4}{3^3}=3\)

Answer 2

[Iruko]

b,\(=2^2\cdot2^5:\left(2^3\cdot\frac{1}{2^4}\right)=2^7:\frac{1}{2}=2^7\cdot2=2^8\)