+0  
 
0
97
2
avatar+184 

Jack rewrites the quadratic $9x^2 - 30x - 42$ in the form of $(ax + b)^2 + c,$ where $a$, $b$, and $c$ are all integers. What is $ab$?

 Apr 2, 2021
 #1
avatar
0

ab = 9*(-30/9) = -30.

 Apr 2, 2021
 #2
avatar+184 
0

Thank you, but it's incorrect. 

 Apr 6, 2021

12 Online Users

avatar