vudu's homework help!

[Ramp]

just wondering for future reference, how good are you at college algebra, trig, statistics and calculus, im currently in college algebra but i have to take those other courses really soon lol

I'm currently taking statistics, not all THAT hard, but you do have to take your time with it. At the beginning it's pretty easy, just simple box whisker plots and population samples etc but if you just breeze through this stuff without fully grasping it, you will be lost once you hit things like confidence intervals and distributions.

 

[Dead Tom]

15x^4+13x^3+5x^2+7x+16=0

Solve for x.

 

[vudu]

15x^4+13x^3+5x^2+7x+16=0

Solve for x.

What level course is this for?

 

[Dead Tom]

Algebra 3 Trigonometry

 

[mr.dude]

15x^4+13x^3+5x^2+7x+16=0

Solve for x.

:O

How would you do that?

 

[vudu]

15x^4+13x^3+5x^2+7x+16=0

Solve for x.

Ugh. Rough one

So, this is called a quartic equation. If you have to show your work you can solve it following this method. It involves "depressing" the equation.

http://www.sosmath.com/algebra/factor/fac12/fac12.html

Wiki has a great shortcut system:
http://en.wikipedia.org/wiki/Quartic_function#Alternative_methods

If you don't have to show work then graph it. Hope this helps.

 

[Dead Tom]

O I already have the answer. I just wanna see if anyone else loves doing algebra like me.

 

[mr.dude]

...All all 4 answers imaginary? Because I graphed it, and it doesn't seem to cross the X axis.

 

[Dead Tom]

Yea they are all imaginary you win.

 

[mr.dude]

Yea they are all imaginary you win.

I win? Sweet!!!!

Do I get a cookie?

 

[Dead Tom]

Yes you do come see me in game and i will give it to you.

 

[Rasta 18]

Well, I'm not good at maths but I'm good at History.I could help you if you want to.By the way, I like this thread xD

 

[mr.dude]

Yes you do come see me in game and i will give it to you.

In-game? :confused1:
Couldn't you just fax it to me?

Oh, and how would you solve that problem if all of the answers are imaginary?

 

[Dead Tom]

Imaginary numbers are numbers and numerical values can be assigned to them. So when you would answer that problem you would just have to estimate and use the quartic formula to solve it.

 

[Tiger Guy]

Remember, the answer is always 4.

 

[vudu]

Remember, the answer is always 4.

I'll write that down. Thanks!

 

[kdub wB]

Vudu, I'm going to have to give you some respect for posting this thread. Anyone that is willing to help deserves to be treated well. You sir, are a good man. Anyone else that helps out in this thread with the problems... hats off to you all too. Continue this thread with great pride.

 

[vudu]

Vudu, I'm going to have to give you some respect for posting this thread. Anyone that is willing to help deserves to be treated well. You sir, are a good man. Anyone else that helps out in this thread with the problems... hats off to you all too. Continue this thread with great pride.

Thanks. That really means a lot. =D

 

[vudu]

One thing I forgot to mention is if you need help with stuff other than math and science I can try to help with that too!