Question

$$x+ \frac{ 1 }{ x } =2.5$$

Answer

x=2,1/2

Solution


Multiply both sides by \(x\).
\[{x}^{2}+1=2.5x\]
Move all terms to one side.
\[{x}^{2}+1-2.5x=0\]
Factor with quadratic formula.
\[(x-2)(x-\frac{1}{2})=0\]
Solve for \(x\).
\[x=2,\frac{1}{2}\]

Decimal Form: 2, 0.5