Ask
your own question, for FREE!

Mathematics
30 Online

OpenStudy (anonymous):

determine the natur of the roots

Still Need Help?

Join the QuestionCove community and study together with friends!

OpenStudy (anonymous):

OpenStudy (anonymous):

OpenStudy (lalaly):

(2x+8)^2 =0 x= -4 and x=-4

OpenStudy (anonymous):

first one divide by 4 and get \[x^2+8x+16=0\] then if you want the "nature of the zeros" compute \[b^2-4ac=64-64=0\]so there is one solution. meaning it is a perfect square namely \[(x+4)^2\] and the solution \[x=-4\]

OpenStudy (anonymous):

second one \[3x^2+12x-3=0\] \[b^2-4ac=12^2-4\times 3\times -3=144+36=180\] so there are two real solutions

Still Need Help?

Join the QuestionCove community and study together with friends!

OpenStudy (anonymous):

so solve write \[x^2+4x-1=0\] \[x^2+4x=1\] \[(x+2)^2=1+2^2=1+4=5\] \[x+2=\pm\sqrt{5}\] \[x=-2\pm\sqrt{5}\]

Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!

Join our real-time social learning platform and learn together with your friends!

Latest Questions

Bounty:
Let me out.... I'm trapped is anyone there I'm trapped I've tried to adapt but I

11 hours ago
5 Replies
2 Medals

Ashlynisback:
why does question cove always get mad at my post like I asked what 1+1 is and It

13 hours ago
8 Replies
3 Medals

toga:
what religion are you and what are the rules that you must follow

12 hours ago
55 Replies
4 Medals

balencichronicals:
https://www.secretmsg.link/secret/6647b7c9a865c/ dont be weird .

17 hours ago
0 Replies
0 Medals