Solve the Equation by Making an Appropriate Substitution $$2 x ^ { 1 / 2 } - 3 x ^ { 1 / 4 } - 20 = 0$$

question 66

Multiple Choice

Solve the equation by making an appropriate substitution.
- $$2 x ^ { 1 / 2 } - 3 x ^ { 1 / 4 } - 20 = 0$$

• A) \(\left\{ 4 , - \frac { 5 } { 2 } \right\}\)
• B) \(\left\{ 256 , \frac { 625 } { 16 } \right\}\)
• C) \(\{ - 4 , - 5 \}\)
• D) \(\{ 256 \}\)

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