Question: I need help with these questions I failed in class last week I need to see what I did wrong, can someone explain them to

I need help with these questions I failed in class last week I need to see what I did wrong, can someone explain them to me,

20. Write the expression log; as a sum and/or difference of logarithms. Express powers as factors.22. Solve the equation 7*-3 = 530. Give both the exact solution in terms of logarithms and a decimal approximation, rounded to the nearest hundredth (two decimal places). (10 pts) Exact answer, in terms of logarithms Decimal approximation (two decimal places)

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