Question

giúp mình với

Answer 1

\(a,x^5.x^2=x^{10}\left(sai\right)=>sửa:x^5.x^2=x^7\\ b,5^4:5=5^3\left(đúng\right)\\ c,41^5:41^5=1\left(đúng\right)\\ d,7^{10}:7^2=1^5\left(sai\right)=>Sửa:7^{10}:7^2=7^5\\ e,5^4:5=5^4\left(sai\right)=>sửa:5^4:5=5^3\\ f,3^8:3^4=1^4\left(sai\right)=>sửa:3^8:3^4=3^4\\ g,3^8:3^2=3^4\left(sai\right)=>sửa:3^8:3^2=3^6\)

Answer 2

2)  \(x^5\cdot x^2=x^{10}\Rightarrow\text{S}\)

3)  \(5^4:5=5^3\Rightarrow\text{Đ}\)

4)  \(41^5:45^5=1\Rightarrow\text{Đ}\)

5)  \(7^{10}:7^2=1^5\Rightarrow\text{S}\)

6)  \(5^4:5=5^4\Rightarrow\text{S}\)

7)  \(3^8:3^2=1^4\Rightarrow\text{S}\)

8)  \(3^8:3^2=3^4\Rightarrow\text{S}\)