EllyS88489 EllyS88489

03-11-2022
Mathematics

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simplify the expression so there is only one positive power for the base -5

simplify the expression so there is only one positive power for the base 5 class=

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XandyrL471982 XandyrL471982

03-11-2022

When we are dividing, exponents are subtracted!

The rule is shown below:

[tex]a^b\div a^c=a^{b-c}[/tex]

We can apply this rule to this problem as shown:

[tex]\begin{gathered} -5^7\div-5^2 \\ =-5^{7-2} \\ =-5^5 \end{gathered}[/tex]

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