Question

find the value of m

Answer 1

3^m ÷ 3^-5= 3 ^ 8
so
a^m÷a^n
m-n
m-(-5)=8
m+5=8
m=3
i hope it will help you answer

Answer 2

$3 {}^{m} \div 3 {}^{ - 5} = 3 { }^{8}$

$3 {}^{m - ( - 5)} = 3 {}^{8}$

$3 {}^{m + 5} = 3 {}^{8}$

Now on comparing powers

$m + 5 = 8$

$m = 8 - 5$

$m = 3$


Thanks