Skip to content / Đến nội dung
ThichHocToan.com

SEAMO 2022 — Paper E — Grade 9–10 Question 25

SEAMO · SEAMO 2022 — Paper E — Grade 9–10

Question 25

Given $\sqrt x=\sqrt{23}-\dfrac1{\sqrt{23}}$, evaluate $\dfrac{x+2+\sqrt{x^2+4x}}{x+2-\sqrt{x^2+4x}}$.