53.4k views
3 votes
Subtract . Your answer should be a polynomial in standard form. (- 5b² - 8b) - (- 9b³ - 5b² - 8b) =

User JesusS
by
7.7k points

1 Answer

6 votes

Final answer:

To subtract the polynomials (-5b² - 8b) - (-9b³ - 5b² - 8b), you need to distribute the negative sign in front of the second polynomial and then combine like terms.

Step-by-step explanation:

To subtract the polynomials (-5b² - 8b) - (-9b³ - 5b² - 8b), you need to distribute the negative sign in front of the second polynomial. This means you will change the signs of every term in the second polynomial. Now, you can combine like terms by adding or subtracting coefficients of the same degree. In this case, you have -5b² - 8b - (-9b³ - 5b² - 8b), which simplifies to -5b² - 8b + 9b³ + 5b² + 8b. Finally, you can combine like terms once again to get 9b³.

Learn more about Subtracting polynomials

User John Clayton
by
7.7k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories