Solve
- $$x - 9 \sqrt { x } + 18 = 0$$

question 77

Multiple Choice

Solve.
- $$x - 9 \sqrt { x } + 18 = 0$$

• A) \(\{ 3,6 \}\)
• B) \(\{ 9,36 \}\)
• C) \(\{ - 3,3 , - 6,6 \}\)
• D) \(\{ - \sqrt { 3 } , \sqrt { 3 } , - \sqrt { 6 } , \sqrt { 6 } \}\)

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