93.4k views
3 votes
Explain step by step how to use the horizontal method the multiple the two polynomials

Explain step by step how to use the horizontal method the multiple the two polynomials-example-1
User Racerror
by
8.7k points

1 Answer

7 votes

Answer:

Explanation:

Multiply each term of the first polynomial with the second polynomial. Then combine the like terms.

(3a² + 5a - 2)* (5a² -3a + 4)

= 3a² *(5a² -3a + 4) + 5a*(5a² -3a + 4) - 2*(5a² -3a + 4)

=3a²*5a² - 3a*3a² + 4*3a² + 5a*5a² - 3a*5a + 4*5a + 5a²*(-2) - 3a*(-2) + 4*(-2)

=15a⁴ - 9a³ + 12a² + 25a³ - 15a² + 20a - 10a² + 6a - 8

= 15a⁴ - 9a³ + 25a³ + 12a² - 15a² - 10a² + 20a +6a - 8

= 15a⁴ + 16a³ - 13a² +26a - 8

User Fetty
by
8.7k points

No related questions found

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