Question

Simply using indices laws ​

Answer 1

your answer is in attachment

hope it helps

Answer 2

Answer:

1

Step-by-step explanation:

3^5 X10^5 X25 /[5^7X6^5] =3^5 X2^5X5^5 X5^2/[5^7X2^5X3^5]

                                               =[5^7X2^5X3^5]/[5^7X2^5X3^5]

                                              =1