Ask your own question, for FREE!
Mathematics 19 Online
OpenStudy (anonymous):

Use quadratic formula to solve: (1/3)x^2+(1/21)x-1=0 simplify, use radicals as needed, express complex numbers in terms of i.

OpenStudy (saifoo.khan):

\[\huge \frac{1}{4}(-1-\sqrt{589}),\frac{1}{4}(-1+\sqrt{589})\]

OpenStudy (anonymous):

Multiply each term by 21 7x^2 +x -21 = 0 a =7, b=1, c = -21 b^2 -4ac = (1)^2-4(7)(-21) = 589 sqrt(b^2-4ac) = sqrt(589) x = (-1 +sqrt(598))/14 or ( -1 - sqrt(589))/14

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!
Latest Questions
kaelynw: starting to draw a hand
1 day ago 16 Replies 2 Medals
Twaylor: Rate it :D (Took 2 days)
2 days ago 7 Replies 0 Medals
XShawtyX: Art, Short Writing Assignment: Imagining Landscapes
1 hour ago 6 Replies 1 Medal
XShawtyX: Chemistry, Help ud83dude4fud83cudffe
2 days ago 13 Replies 1 Medal
kaelynw: tried a lil smt, the arm is off but i like the other stuff
3 days ago 27 Replies 3 Medals
kaelynw: art igg
3 days ago 14 Replies 1 Medal
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!