Adding three polynomials

The video tutorial explains how to add three polynomials by first removing unnecessary grouping symbols and then combining like terms. The instructor emphasizes the importance of identifying terms with the same base and exponent to combine them effectively. The process involves rewriting the polynomial to group like terms together and then performing arithmetic operations to simplify the expression. The tutorial concludes with a demonstration of the final combined polynomial.

What is the first step to simplify the addition of polynomials according to the text?

Explain what 'like terms' are in the context of polynomial addition.

How do you combine the terms -8X^4 and -5X^4?

What is the result of combining the terms -12X^3Y, -14X^3Y, and -4X^3Y?

After combining all the terms, what is the final expression obtained?