# record 1: header: parent, keywords
# record 2: calling parameters
# record 3: submit buttons
# record 4: html form content

:algebre, algebre elementaire,
polynome, expression, developper

:datatype, polynome
operation, Développer l'expression,expand

:,Développer l'expression

:
 $submit1
 <input type="text" name="formula" size="40" value="2(x + 2)(x - 2)" />
