Pls answer question 18
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3^5*10^5*25/5^7*6^5
=3^5*(2*5)^5*5²/5^7*(2*3)^5
=3^5*2^5*5^5*5²/5^7*2^5*3^5
=3^5-5*2^5-5*5^5+2/5^7
=5^7-7
=5^0
=1
by using
a^m/a^n=a^m-n
a^m*a^n=a^m+n
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