<PRE><B>Question 780304</B>
18z + 45 + z^2
---------
z^2 + 18z + 45
------
z^2 + (3z+15z) + 45
------
z(z+3) + 15(z+3)
------
= (z+3)(z+15)
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Cheers,
Stan H.
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