find m so that (-3)^m*1*(-3)^5=(-3)^7
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given
(-3)^m*(-3)^5=(-3)^7
as we know
a^m*a^n=(a)^m+n
therefore,a^(m+n)=(-3)^7
(-3)^(m+5)=(-3)^7
we know that if a^m=a^n,then m=n
therefore m+5=7
m=7-5
m=2
therefore value of m=2
(-3)^m*(-3)^5=(-3)^7
as we know
a^m*a^n=(a)^m+n
therefore,a^(m+n)=(-3)^7
(-3)^(m+5)=(-3)^7
we know that if a^m=a^n,then m=n
therefore m+5=7
m=7-5
m=2
therefore value of m=2
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