Make an Appropriate Substitution and Solve the Equation $400 x ^ { - 4 } - 41 x ^ { - 2 } + 1 = 0$

question 103

Multiple Choice

Make an appropriate substitution and solve the equation.
- $400 x ^ { - 4 } - 41 x ^ { - 2 } + 1 = 0$

• A) \(\{ - 5 , - 4,4,5 \}\)
• B) \(\left\{ \frac { 1 } { 5 } , \frac { 1 } { 4 } \right\}\)
• C) \(\{ 4,5 \}\)
• D) \(\left\{ - \frac { 1 } { 4 } , - \frac { 1 } { 5 } , \frac { 1 } { 5 } , \frac { 1 } { 4 } \right\}\)

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