a. Journalize the adjusting entry on December 31 for the impaired goodwill.
b. Journalize the adjusting entry on December 31 for the amortization of the patent rights.
Answer:

a.
Dec. 31 Loss from Impaired Goodwill 6,000,000
Goodwill 6,000,000
Impaired goodwill.
b. Dec. 31 Amortization Expense—Patents 93,750
Patents 93,750
Amortized patent rights
[($1,500,000 ÷ 12) × 9/12].