[toán 9] rút gọn biểu thức

T

transformers123

$P=\dfrac{\sqrt{2}+\sqrt{3}+\sqrt{6}+\sqrt{8}+4}{ \sqrt{2}+\sqrt{3}+\sqrt{4}}$

$\iff P=\dfrac{\sqrt{2}+\sqrt{3}+\sqrt{4}}{ \sqrt{2}+\sqrt{3}+\sqrt{4}}+\dfrac{\sqrt{4}+\sqrt{6}+\sqrt{8}}{\sqrt{2}+\sqrt{3}+\sqrt{4}}$

$\iff P=1+\sqrt{2}$
 
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