# How to Add and Subtract Polynomials 3

This is the third part and the conclusion of the How to Add and Subtract Polynomials series. In this video, I have discussed subtraction of polynomials and roles of parenthesis in subtraction. In order to understand subtraction of polynomials, recall that $a + (-b) = a - b$. Now, if the subtrahend is more than one terms, you will get the “negative” of $b$ which is this time a polynomial. Watch the video above for the details of this discussion

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