+0  
 
0
35
1
avatar

What is the remainder when the polynomial 5x^2+10x−15 is divided by x + 5?

Guest Sep 25, 2018

Best Answer 

 #1
avatar+2424 
+1

did you try dividing? no.. as you clearly tried nothing 

 

\(5x^2 + 10x - 15 = (x+5) 5x -(15x+15) \\ -(15x+15) = -15(x+5) +60 \\ 5x^2 + 10x - 15 = (15x-15)(x+5) + 60 \\ \text{The remainder is 60}\)

Rom  Sep 25, 2018
 #1
avatar+2424 
+1
Best Answer

did you try dividing? no.. as you clearly tried nothing 

 

\(5x^2 + 10x - 15 = (x+5) 5x -(15x+15) \\ -(15x+15) = -15(x+5) +60 \\ 5x^2 + 10x - 15 = (15x-15)(x+5) + 60 \\ \text{The remainder is 60}\)

Rom  Sep 25, 2018

7 Online Users

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.