Question

7 задание решите пж!

Answer 1

25^5-125^3=(5^2)^5-(5^3)^3=5^10-5^9=5^9*(5-1)=5^9*4. 5^9*4 / 4=5^9.  64^7-32^8=(2^6)^7-(2^5)^8=2^42-2^40=2^40*(2^2-1)=2^40*3. 2^40*3 / 3=2^40.