13.4.1 Adding and Subtracting Polynomials

Question 1

adding polynomials

Answer 1

first rewrite each polynomial without the parentheses. Since the operation preceding each set of parentheses
is addition, the parentheses may be removed without making any changes to the expressions within the parentheses. Then, use the commutative and associative properties to rearrange the terms so that the like terms are grouped together. If the polynomials contain only one variable, write the terms in descending order of degree. Last, combine any like terms