Polynomial Equation Solver

<Window x:Class="MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Jenkins–Traub algorithm" Height="355" Width="430">
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="160"></ColumnDefinition>
            <ColumnDefinition></ColumnDefinition>
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height="50"></RowDefinition>
            <RowDefinition Height="22"></RowDefinition>
            <RowDefinition Height="20"></RowDefinition>
            <RowDefinition Height="20"></RowDefinition>
            <RowDefinition Height="40"></RowDefinition>
            <RowDefinition Height="*"></RowDefinition>
        </Grid.RowDefinitions>
        <TextBlock Grid.ColumnSpan="2" TextWrapping="Wrap" >The input below should be on the form 2,3,2 etc. starting with the highest order coefficient and ending on lowest one. All coefficients must be included, meaning put 0 for missing ones.</TextBlock>
        <TextBox Height="20" Grid.Row="1" Grid.ColumnSpan="2" Name="TextBox1" TextChanged="TextBox1_TextChanged" Text="2,3,2"/>
        <TextBlock Grid.Row="2" >Formula that is evaluated: </TextBlock>
        <TextBox Grid.Row="3" Name="txtFormula" TextWrapping="Wrap" Grid.ColumnSpan="2">2*x^2 + 3*x + 2 = 0</TextBox>

        <Button Grid.Row="4" Grid.ColumnSpan="2" Content="Calculate" Height="39" Name="Button1"  />
        <TextBox Grid.Row="5" Grid.ColumnSpan="2"   Name="TextBox2"   />
    </Grid>
</Window>