+0  
 
0
111
3
avatar

(3x3+2x2-25x-12)/(x+3)=?

Guest Jun 29, 2017
Sort: 

3+0 Answers

 #1
avatar+1088 
+1

We can use long division to answer this question:

 

    3x^2 -7x -4            
  ------ ------ ------ ------ ------          
  | 3x^3 +2x^2 -25x -12          
x+3 ------                  
  - (3x^3 +9x^2)              
    -3x^3 -9x^2              
    ------ ---------              
    0 -7x^2 -25x            
    - (-7x^2 -21x)            
      7x^2 +21x            
      -------- ------            
      0 -4x -12          
      - (-4x -12)          
        4x +12          
        0 0          
                     

 

Therefore, \(\frac{3x^3+2x^2-25x-12}{x+3}=3x^2-7x-4\hspace{1mm},\hspace{1mm}x\neq-3\)

TheXSquaredFactor  Jun 30, 2017
 #2
avatar+18542 
+1

(3x^3+2x^2-25x-12)/(x+3)=?

 

\(\dfrac{3x^3+2x^2-25x-12}{x+3}=\ ? \)

 

 

laugh

heureka  Jun 30, 2017
 #3
avatar+26094 
+1

Here's another way to approach this problem:

 

.

Alan  Jun 30, 2017

10 Online Users

avatar
avatar
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details