Invert the second fraction and change the
division to multiplication:
×
Factor the two numerators, and write as ×
Put parentheses around the left denominator so
everything will be "packaged" in parentheses:
×
Indicate the multiplication of the numerators
and denominators, so it will all be one fraction:
Cancel the 's
Cancel the in the top with one of the
's in the bottom:
All that's left is
You can leave it like that, or if you like
you can FOIL out the top as
and leave it this way:
Edwin