Solve for Real Roots $$2 x ^ { 1 / 2 } - 11 x ^ { 1 / 4 } - 21 = 0$$

question 81

Multiple Choice

Solve for real roots.
- $$2 x ^ { 1 / 2 } - 11 x ^ { 1 / 4 } - 21 = 0$$

• A) \(x = 2401\)
• B) \(x = 7 , - \frac { 3 } { 2 }\)
• C) \(x = 2401 , \frac { 81 } { 16 }\)
• D) \(x = - 7 , - 3\)

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