\(D=\dfrac{1-x-\sqrt{x^3}}{\sqrt{x}+1}\) \(\left(x\ge0\right)\)
\(D=\dfrac{1-x-x\sqrt{x}}{\sqrt{x}+1}\)
\(D=\dfrac{1-x\left(1+\sqrt{x}\right)}{\sqrt{x}+1}\)
\(D=-\dfrac{x\left(1+\sqrt{x}\right)}{\sqrt{x}+1}+\dfrac{1}{\sqrt{x}+1}\)
\(D=-x+\dfrac{1}{\sqrt{x}+1}\)
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