Solve
- $$x ^ { - 2 } + 8 x ^ { - 1 } + 7 = 0$$

question 197

Multiple Choice

Solve.
- $$x ^ { - 2 } + 8 x ^ { - 1 } + 7 = 0$$

• A) \(\left\{ \frac { 1 } { 7 } , 1 \right\}\)
• B) \(\left\{ - \frac { 1 } { 7 } , - 1 \right\}\)
• C) \(\{ - 1 , - 7 \}\)
• D) \(\{ 1,7 \}\)

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Definitions:

Federal Funds Rate

The interest rate at which depository institutions lend reserve balances to other depository institutions overnight on an uncollateralized basis.

Real Interest Rate

The interest rate adjusted for inflation, reflecting the true cost of borrowing or real yield on savings.

Secondary Reserves

Liquid assets held by financial institutions as a backup to primary reserves, used to meet unforeseen demands.

Government Securities

Financial instruments issued by a government to finance its fiscal deficit, including bonds, bills, and notes, which are considered low-risk investments.