21.8k views
3 votes
Please help, its quick I just need help with this one that Im stuck on

Discriminent worksheet


a: -4 Ex: -4m^2-3m+3=-6
+6 +6
*************************************
b: -3

c: 9 .

-4m-3m+9=0

b^2-4ac

(-3)^2-4(-4)(9)

9+144

153


(I need this one solved with the work shown)

2.) -4k^2-4k+6=-4

User Kbrown
by
6.9k points

1 Answer

4 votes


- 4k^(2) - 4k + 6 = 0 \\ \\ 4k^(2) + 4k - 6 - 4 = 0 \\ \\ 4k^(2) + 4k - 10 = 0 \\ \\ k = ( - 4 + 4 √(11) )/(8) ( - 4 - 4 √(11) )/(8) \\ \\ k = ( - 1 - √(11) )/(2) ( - 1 + √(11) )/(2)

User Shoresh
by
6.3k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.