Solve the Equation $$x ^ { - 2 } - x ^ { - 1 } = 42$$

question 127

Multiple Choice

Solve the equation.
- $$x ^ { - 2 } - x ^ { - 1 } = 42$$

• A)7, -6
• B) \[- \frac { 1 } { 7 } , \frac { 1 } { 6 }\]
• C)-7, 6
• D) \[\frac { 1 } { 7 } , - \frac { 1 } { 6 }\]

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Definitions:

Money Supply

The total financial assets present within an economy, inclusive of cash, coins, and the amounts present in checking and savings accounts, at a certain point.

Reserve Requirement Ratio

The fraction of deposits that banks are required to hold in reserve, either in their vaults or with the central bank, not used for loans.

Checkable Deposits

Deposits in bank accounts that can be withdrawn using checks, debit cards, or digital transactions, comprising a significant part of the money supply.

Required Reserves

are the minimum amounts of funds that banks must hold in reserve against deposits, as mandated by central banks.