How to change the subtraction of two polynomials to addition

The video tutorial explains how to add and subtract polynomials by focusing on like terms, which must have the same base and exponent. It demonstrates converting subtraction problems into addition by changing signs and aligning terms vertically to combine them. The tutorial concludes with solving a polynomial problem by combining like terms and finalizing the solution.

Identify the like terms in the expression X^3 - X + 1 - 3X and explain how to combine them.

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What happens to the terms when you change a subtraction to addition in polynomial expressions?

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