Answers

✨ Jawaban Terbaik ✨

x+23=±√50
x=√50-23 or -√50-23
√50-23 > -√50-23
(a) > (b)
2(√50-23)+(-√50-23)
=2√50-46-√50-23
=√50-69
=-69+5√2
選(A)

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