Question 1077082
(format)

{{{(72a^5b^7c^8-54a^9b^4c^7+45a^5b^5c^4)+(9a^2bc^3)}}}

= {{{9a^2bc^3(8a^3b^6c^5 - 6a^7b^3c^4 + 5a^3b^5c + 1)}}}