Question

[trần phương linh]

căn x +3 trên căn x+1 +5 trên căn x-1 +4 trên x-1

giúp mk với mk ko bt làm

Answer 1

[Hoàng Như Quỳnh]

\(\frac{\sqrt{x}+3}{\sqrt{x}+1}+\frac{5}{\sqrt{x}-1}+\frac{4}{x-1}\)

\(\frac{\left(\sqrt{x}+3\right)\left(\sqrt{x}-1\right)+5\sqrt{x}+5+4}{\left(\sqrt{x}+1\right)\left(\sqrt{x}-1\right)}\)

\(\frac{x+3\sqrt{x}-\sqrt{x}-3+5\sqrt{x}+9}{\left(\sqrt{x}+1\right)\left(\sqrt{x}-1\right)}\)

\(\frac{x+7\sqrt{x}+6}{\left(\sqrt{x}+1\right)\left(\sqrt{x}-1\right)}\)

\(\frac{x+6\sqrt{x}+\sqrt{x}+6}{\left(\sqrt{x}+1\right)\left(\sqrt{x}-1\right)}\)

\(\frac{\sqrt{x}\left(\sqrt{x}+1\right)+6\left(\sqrt{x}+1\right)}{\left(\sqrt{x}+1\right)\left(\sqrt{x}-1\right)}\)

\(\frac{\left(\sqrt{x}+1\right)\left(\sqrt{x}+6\right)}{\left(\sqrt{x}+1\right)\left(\sqrt{x}-1\right)}\)

\(\frac{\sqrt{x}+6}{\sqrt{x}-1}\)

Answer 2

[trần phương linh]

oa đúng lun rùi ne cả ơn nha ^^