Calculate: 4x * 2+8x-4

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Expression: $4x \times 2+8x-4$

To find the roots of the polynomial, set the expression equal to $0$

$4x \times 2+8x-4=0$

Solve the equation for $x$

$x=\frac{ 1 }{ 4 }$

The root of the polynomial is the solution of the corresponding polynomial equation

$\begin{align*}&\frac{ 1 }{ 4 } \\&\begin{array} { l }0.25,& {2}^{-2}\end{array}\end{align*}$

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