andreabolanosbrain
Answered

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

Answer :

tmarsheuna

[tex] - 4k^{2} - 4k + 6 = 0 \\ \\ 4k^{2} + 4k - 6 - 4 = 0 \\ \\ 4k^{2} + 4k - 10 = 0 \\ \\ k = \frac{ - 4 + 4 \sqrt{11} }{8} \frac{ - 4 - 4 \sqrt{11} }{8} \\ \\ k = \frac{ - 1 - \sqrt{11} }{2} \frac{ - 1 + \sqrt{11} }{2} [/tex]

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