Solution:
Given:
[tex](9.7\times10^5)-(8.73\times10^5)[/tex]To subtract the numbers, since they both have the same power, we subtract the decimal numbers separately and multiply by the number having the exponents.
Hence,
[tex]9.7-8.73=0.97[/tex]Now multiply by 10 to the power of 5.
Therefore, the final answer is;
[tex]\begin{gathered} 0.97\times10^5 \\ \\ In\text{ standard form;} \\ 9.7\times10^4 \end{gathered}[/tex]