+0  
 
0
1
71
1
avatar+661 

Polynomial multiplication 

critical  Sep 13, 2018
 #1
avatar+91297 
+2

(a^2 + 3a - 7)  ( 2a^2 - a + 4)

 

Distribute  each term in the first set of parentheses over all the terms in the second and we have

 

a^2 * 2a^2  + a^2* - a + a^2* 4  =     2a^4   - a^3    + 4a^2

3a * 2a^2  + 3a * -a  + 3a * 4  =                   +6a^3  - 3a^2   + 12a

-7 *2a^2   - 7 * -a   - 7 * 4   =                                  -14a^2   + 7a     - 28

 

Add  the columns and we  get

 2a^4  + 5a^3  - 13a^2  + 19a  - 28

 

 

cool cool cool

CPhill  Sep 13, 2018

7 Online Users

avatar
avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.