At Westonci.ca, we make it easy to get the answers you need from a community of informed and experienced contributors. Our Q&A platform provides quick and trustworthy answers to your questions from experienced professionals in different areas of expertise. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals.


Perform the indicated operation and write the resulting polynomial in descending order.
(-5a³-7a²+10) - (2a³ +8a²-2a-1) + (-2a³-7a²+5a-2)