Помогите 2 вариант и ниже 1

Question

Помогите 2 вариант и ниже 1

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Answer 1

3.
  
  3⁷*⁴ ₓ    5⁵*⁴                                             1          1
------------------= 3²⁸ ⁻³⁰ ₓ 5²⁰ ⁻ ²⁰= 3⁻² ₓ 5⁰= --- ₓ1= ----
  5⁴*⁵  ₓ 3⁶*⁵                                               9         9

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