A community for students.
Here's the question you clicked on:
 0 viewing
mathhelp23
 3 years ago
solve
3x^25x11=0
find the x intersepts of f(x)=3x^25x11.
mathhelp23
 3 years ago
solve 3x^25x11=0 find the x intersepts of f(x)=3x^25x11.

This Question is Closed

Hero
 3 years ago
Best ResponseYou've already chosen the best response.4\[D = b^2  4ac = (5)^2  4(3)(11) = 25 + 132 = 157\]

Hero
 3 years ago
Best ResponseYou've already chosen the best response.4\[x = \frac{\pm \sqrt{157} + 5}{6}\]

krypton
 3 years ago
Best ResponseYou've already chosen the best response.1@Hero that's the answer i got,dat's why i called it a complex root

mathg8
 3 years ago
Best ResponseYou've already chosen the best response.1@krypton : square root of a negative number gives you a complex number solution

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.0any number is complex

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.04 is complex 4i is complex 4+4i is complex

mathg8
 3 years ago
Best ResponseYou've already chosen the best response.1why do we have real and complex sets then ?

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.0real numbers is a subset of the complex imaginary numbers is a subset of the complex

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.0all numbers are complex

mathg8
 3 years ago
Best ResponseYou've already chosen the best response.1If a complex number has b = 0, then it is a real number and it lies on the real axis in the complex plane

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.0Definition of Complex: \[Complex =\{a+bi  a \in \mathbb{R} , b \in \mathbb{R}\}\]

Hero
 3 years ago
Best ResponseYou've already chosen the best response.4Define complex in words only without using mathematical notation.

Hero
 3 years ago
Best ResponseYou've already chosen the best response.4What a meant to say is that the discriminant yields a real number, not a complex number. The definition of a complex number is a + bi

mathg8
 3 years ago
Best ResponseYou've already chosen the best response.1The real line can be thought of as a part of the complex plane, and correspondingly, complex numbers include real numbers as a special case.

Hero
 3 years ago
Best ResponseYou've already chosen the best response.4That's good to know. I'm not the one confused about it.

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.0I'm not confused either.

Hero
 3 years ago
Best ResponseYou've already chosen the best response.4I know you're not myininaya. I never said you were :P

mathg8
 3 years ago
Best ResponseYou've already chosen the best response.1def : A complex number is neither purely real nor purely imaginary, but rather is a composite of the two ! Happy everyone ?

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.0Ok I guess I just understood you. sorry hero. :)

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.0misunderstood you* lol

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.0real numbers are complex imaginary numbers are complex real numbers+imaginary numbers are still complex

Hero
 3 years ago
Best ResponseYou've already chosen the best response.4she avoided using the word "pure" in her definitions.

Hero
 3 years ago
Best ResponseYou've already chosen the best response.4So myininaya, which numbers are purely complex?

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.0I don't have a definition for "purely" complex numbers as I never heard of any set of numbers being defined at such sorry

mathg8
 3 years ago
Best ResponseYou've already chosen the best response.1check out this book : An imaginary tale The Story of √1 by Paul J. Nahim ( Professor Emeritus of Electrical Engineering at the University of New Hampshire )

Hero
 3 years ago
Best ResponseYou've already chosen the best response.4Guess there's no such thing as a pure complex number since it is a "mixture" of pure real and pure imaginary.

mathg8
 3 years ago
Best ResponseYou've already chosen the best response.14 is real 4+0i is complex

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.04/2 is an integer just like 2 is

Hero
 3 years ago
Best ResponseYou've already chosen the best response.4Why are you two reciting stuff you already know? Because I already know this stuff

mathg8
 3 years ago
Best ResponseYou've already chosen the best response.1this is interesting ... LOL

Hero
 3 years ago
Best ResponseYou've already chosen the best response.4mathg8, I guess you really want krypton to understand

mathg8
 3 years ago
Best ResponseYou've already chosen the best response.1I just never heard this before ... so it is interesting ( not wrong or right ) just interesting ...

mathg8
 3 years ago
Best ResponseYou've already chosen the best response.1real numbers are complex ( i meant this statement )

Hero
 3 years ago
Best ResponseYou've already chosen the best response.4Krypton, I'm sure you enjoyed this

krypton
 3 years ago
Best ResponseYou've already chosen the best response.1lol yeah! alot,just woke up from sleep and logged in,only to find some argument in here.was fun :)
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.