+0  
 
+2
68
3
avatar+2051 

Please help asap!

RainbowPanda  Sep 11, 2018
 #1
avatar+3270 
+2

13. When you have a negative sign before the parenthesis, the signs change in inside!

 

So, the answer is -14x^4+5x^3+6, after the calculations!

 

Use the same method for 14!

smileysmiley

tertre  Sep 11, 2018
 #2
avatar+2051 
+1

Ty but I still don't really understand >.<

RainbowPanda  Sep 11, 2018
 #3
avatar+3270 
+2

13. \((8x^3-6x^4+3)-(3x^3-3+8x^4)= 8x^3-6x^4+3-3x^3+3-8x^4\)\(=-14x^4+5x^3+3+3=-14x^4+5x^3+6.\)

 

Remember! When you have a negative sign before the parenthesis, the signs change in inside!

tertre  Sep 11, 2018

12 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.