3a²-[-7-(6a²-4a)]- [-1+(-8a+1)] me simplify the expression by removing grouping symbols and combining like terms. write the terms from highest to the lowest power of the variable i don't know how to do this

Apolynomial function has a root of –6 with multiplicity 1, a root of –2 with multiplicity 3, a root of 0 with multiplicity 2, and a root of 4 with multiplicity 3. if the function has a positive leading coefficient and is of odd degree, which statement about the graph is true?

What is the fewest number of full weeks briyana would have to work to have enough money? 8 weeks9 weeks 10 weeks11 weeks

What are “like terms”? why can we only add like terms?