Question

Which expression is equivalent to 7^3 • 7^xA. 7^3x B. (7•x)^3C. 49^3xD. 7^3 - xE. 343 • 7^xF. 7^3 + x

Answer 1

Given

`7^3\cdot7^x`

Find

Which expression is equivalent to given expression

Step-by-step explanation

here we use the exponent rule with same base.

`a^n\cdot a^m=a^(n+m)`

so ,

`\begin{gathered} 7^3\cdot7^x \\ 7^(3+x) \end{gathered}`

or ,

`\begin{gathered} 7^3\cdot7^x \\ (7*7*7)\cdot7^x \\ 343\cdot7^x \end{gathered}`

Final Answer

Hence , the correct options are E and F