``
``
``
``
444.2
444.2)
$x^3+x=x(x^2+1)$
$xy-7y=y(x-7)$
$a-ab=a(1-b)$
$x+2xy=x(1+2y)$
extra!
444.10
$4xy^2+4x^2y-4x^2y^2=$
$=4xy(y+x-xy)$
444.11
$3a^3b^4+6a^2b^6-9a^4b^3+12a^3b^2=$
$=3a^2b^2(ab^2+2b^4-3a^2b+4a)$
indice - tutti i nodi - modifica - login