Solve the Equation $$36 x ^ { 4 } - 85 x ^ { 2 } + 49 = 0$$

question 219

Multiple Choice

Solve the equation.
- $$36 x ^ { 4 } - 85 x ^ { 2 } + 49 = 0$$

• A) \(\left\{ - \frac { 7 } { 6 } , - 1,1 , \frac { 7 } { 6 } \right\}\)
• B) \(\left\{ - 1 , - \frac { 6 } { 7 } \right\}\)
• C) \(\left\{ - 1 , - \frac { 6 } { 7 } , \frac { 6 } { 7 } , 1 \right\}\)
• D) \(\left\{ 1 , \frac { 7 } { 6 } \right\}\)

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