Question 63
Back to Exercise
If √(x + 16) − √x = 2, find x.
- A 16
- B 4
- C 25
- D 9 Correct
Correct Answer: Option D
√(x + 16) = 2 + √x
Square: x + 16 = 4 + 4√x + x
12 = 4√x → √x = 3
x = 9
Check: √25 − √9 = 5 − 3 = 2 ✔
Answer: 9
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