Question 808706


{{{(9a^5+a-6)-(8-6a^3-9a^2)}}}..eliminate parentheses first, be careful with {{{-(8-6a^3-9a^2)}}}; if you have minus in front of parentheses, each sign inside will change

={{{9a^5+a-6-8+6a^3+9a^2}}}.......group like terms

={{{9a^5+a-(6+8)+6a^3+9a^2}}}

={{{9a^5+6a^3+9a^2+a-14}}}