Question 631164
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
{{{(2a^12b^3)(-9b^2c^6)(3a^1c^1)}}}    Note:  {{{ab = a^1c^1}}}
{{{-54a^12b^5c^6a^1c^1}}}
{{{-54a^13b^5c^7}}}