Question

$$(\frac{2\sqrt{x}+x}{\sqrt{x}^{3}-1}-\frac{1}{\sqrt{x}-1})\div(\begin{matrix}1-\frac{\sqrt{x}+2}}{2+\sqrt{x}+1}})$$

Answer

$$(sqrt(x)+x^(5/2)-2)/(matrix+23)$$

Solution


Use this rule: \({({x}^{a})}^{b}={x}^{ab}\).
\[\frac{2\sqrt{x}+x{x}^{\frac{3}{2}}-1-1\times \sqrt{x}-1}{matrix\times 1-\sqrt{x}+22+\sqrt{x}+1}\]
Simplify  \(x{x}^{\frac{3}{2}}\)  to  \({x}^{\frac{5}{2}}\).
\[\frac{2\sqrt{x}+{x}^{\frac{5}{2}}-1-1\times \sqrt{x}-1}{matrix\times 1-\sqrt{x}+22+\sqrt{x}+1}\]
Simplify  \(1\times \sqrt{x}\)  to  \({x}^{\frac{1}{2}}\).
\[\frac{2\sqrt{x}+{x}^{\frac{5}{2}}-1-{x}^{\frac{1}{2}}-1}{matrix\times 1-\sqrt{x}+22+\sqrt{x}+1}\]
Collect like terms.
\[\frac{2\sqrt{x}+{x}^{\frac{5}{2}}+(-1-1)-\sqrt{x}}{matrix\times 1-\sqrt{x}+22+\sqrt{x}+1}\]
Simplify  \(2\sqrt{x}+{x}^{\frac{5}{2}}+(-1-1)-\sqrt{x}\)  to  \(2\sqrt{x}+{x}^{\frac{5}{2}}-2-\sqrt{x}\).
\[\frac{2\sqrt{x}+{x}^{\frac{5}{2}}-2-\sqrt{x}}{matrix\times 1-\sqrt{x}+22+\sqrt{x}+1}\]
Collect like terms.
\[\frac{(2\sqrt{x}-\sqrt{x})+{x}^{\frac{5}{2}}-2}{matrix\times 1-\sqrt{x}+22+\sqrt{x}+1}\]
Simplify  \((2\sqrt{x}-\sqrt{x})+{x}^{\frac{5}{2}}-2\)  to  \(\sqrt{x}+{x}^{\frac{5}{2}}-2\).
\[\frac{\sqrt{x}+{x}^{\frac{5}{2}}-2}{matrix\times 1-\sqrt{x}+22+\sqrt{x}+1}\]
Simplify  \(matrix\times 1\)  to  \(matrix\).
\[\frac{\sqrt{x}+{x}^{\frac{5}{2}}-2}{matrix-\sqrt{x}+22+\sqrt{x}+1}\]
Collect like terms.
\[\frac{\sqrt{x}+{x}^{\frac{5}{2}}-2}{matrix+(-\sqrt{x}+\sqrt{x})+(22+1)}\]
Simplify  \(matrix+(-\sqrt{x}+\sqrt{x})+(22+1)\)  to  \(matrix+23\).
\[\frac{\sqrt{x}+{x}^{\frac{5}{2}}-2}{matrix+23}\]