Solve the Equation $80 x ^ { - 2 } - 18 x ^ { - 1 } + 1 = 0$

question 207

Multiple Choice

Solve the equation.
- $80 x ^ { - 2 } - 18 x ^ { - 1 } + 1 = 0$

• A) \(\left\{ \frac { 1 } { 8 } , \frac { 1 } { 10 } \right\}\)
• B) \(\{ 8 , - 10 \}\)
• C) \(\{ 8,10 \}\)
• D) \(\{ - 8 , - 10 \}\)

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