Missing

\title{Factorisation}
\language{fr}
\range{-5..5}
\author{Odile Bénassy}
\email{obenassy@free.fr}
\computeanswer{no}
\format{html}
\precision{10000}

\integer{numexo=random(1,2)}
\integer{a=random(2,3,4,5,6,7,8,9,10,12,15,20)}
\integer{b=random(2,3,4,5,6,7,8,9,10,12,15,20)}
\integer{c=random(3,7,9,21,27)}
\integer{d=random(2,4,5,8,10,16,20)}
\text{s1=random(-1,1)}
\text{s2=random(-1,1)}
\text{s3=random(-1,1)}
\text{s4=random(-1,1)}
\function{res11 = \s1 * \a * \s3 * \c} 
\function{res21 = \s1 * \a * \s3 * \c} 
\function{res31 = \s1 * \a * \s3 * \c} 
\function{res41 = \s1 * \a * \s3 * \c} 
\function{res12 = \s1 * \a * \s4 * \d} 
\function{res22 = \s1 * \a * \s4 * \d} 
\function{res32 = \s1 * \a * \s4 * \d} 
\function{res42 = \s1 * \a * \s4 * \d} 

\text{\factorisees = 
\s1 \a(\s3 \c x \s4 \d),
\s1 \a(\s3 \c  \s4 \d x),
\s1 \a(\s3 \c a \s4 \d b),
\s1 \a x (\s3 \c x \s4 \d),
\s1 \a a (\s3 \c  \s4 \d b) 
}

\text{\reduites = 
\(\res11 x + \res12),
\(\res21 + \res22 x),
\(\res31 a + \res32 b),
\(\res41 x^2 + \res42 x),
\(\res51 a + \res52 ab)
}

\text{numitem=random(1,2,3,4,5,6)}
\text{factorisee=item(\numitem, \factorisees)}
\text{reduite=item(\numitem, \reduites)}

\statement{

\if{debug iswordof \oefenv}{
<p>\factorisees
<p>\reduites
<p>\numitem, \factorisee, \reduite
}
<p>Factoriser l'expression suivante :
<p><center>\reduite = \embed{reply 1}</center>
}

\answer{}{\factorisee}{type=algexp}