Public Class Form1

    Dim a As Integer

    Dim b As Integer

    Dim c As Integer

    Dim x1 As Single

    Dim x2 As Single

    Dim dis As Single

    Dim alerta As String

    Private Sub Label6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Label6.Click

    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click

        End

    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

        a = TextBox1.Text

        b = TextBox2.Text

        c = TextBox3.Text

        dis = (b ^ 2) - (4 * a * c)

        If dis < 0 Then MsgBox("La ecuacion no tiene una solucion real", MsgBoxStyle.OkOnly, "Ecuacion del tipo: Ax2+Bx+C=0")

        If alerta = 1 Then

            alerta = 0

            dis = 0

            End

        End If

        x1 = (-b + (Math.Sqrt(dis))) / (2 * a)

        x2 = (-b - (Math.Sqrt(dis))) / (2 * a)

        TextBox4.Text = x1

        TextBox5.Text = x2

    End Sub

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click

        TextBox1.Text = ""

        TextBox2.Text = ""

        TextBox3.Text = ""

        TextBox4.Text = ""

        TextBox5.Text = ""

    End Sub

End Class