When I add or subtract polynomials, the degree adding
together too? Ex: 5X^3-2X^2+7X^2, the degree staying 3 or 2? Or we add them?
Answer: 5X^3-2X^2+7X^2
5 x ^3 + 5 x^2
Adding polynomials: simply add the like terms together. Like
terms are terms with the same variables and exponents.
<span>
Subtracting polynomials: reverse the sign of each term
(in other words turn "+" into "-", and "-" into
"+"), then proceed to addition.</span>
