Question

Rút gọn: \(\dfrac{x-10\sqrt{x}+25}{\left(\sqrt{x}-5\right)\left(\sqrt{x}+5\right)}\)

Answer 1

\(\dfrac{\left(\sqrt{x}+5\right)^2}{\left(\sqrt{x}-5\right)\left(\sqrt{x}+5\right)}\)

\(\dfrac{\sqrt{x}+5}{\sqrt{x}-5}\)

Answer 2

\(\dfrac{\left(\sqrt{x}-5\right)^2}{\left(\sqrt{x}-5\right)\left(\sqrt{x}+5\right)}\)

\(\dfrac{\sqrt{x}-5}{\sqrt{x}+5}\)