5a6-7a-6a4+(2a4+4a6+4a)Remove parentheses.5a6-7a-6a4+2a4+4a6+4aAdd 5a6 and 4a6.9a6-7a-6a4+2a4+4aAdd -7a and 4a.9a6-6a4+2a4-3aAdd -6a4 and 2a4.9a6-4a4-3a Simplify 5a^6-7a-6a^4+(2a^4+4a^6+4a) Solving MATH problems We can solve all math problems. Get help on the web or with our math app