Best explanation for how to divide polynomials with long division

The video tutorial explains the process of performing long division with polynomials. It begins with an introduction to the concept and proceeds to demonstrate how to divide polynomials step-by-step. The instructor emphasizes the importance of organizing terms in descending order and highlights common mistakes, such as handling parentheses and double negatives. The tutorial also covers how to handle remainders and concludes with verifying if the divisor is a factor of the polynomial.

What is the quotient when dividing the polynomial by X + 3?

Is the polynomial divisible by X + 3?