
Please post any and all homework or other textbookstyle problems in one of the Homework & Coursework Questions...

Feb2313 09:23 AM
micromass

1 
39,259 
Struggling with this one
How do you solve the equations of the form
ax^4+bx^2+c=0

Jan2905 05:49 PM
krab

1 
930 
Are there any general methods to solve the following complex exponential polynomial without relying on numerical...

Dec309 02:42 PM
Count Iblis

2 
1,805 
Hi, I've been trying to solve this equation for hours no, hoping somebody here can help.
I have the equation: 2m2w3...

Apr210 02:30 PM
elect_eng

9 
2,504 
x3  12x + 1 = 0
How does one solve for x?

Nov2009 05:14 AM
HallsofIvy

2 
2,400 
How does one find the roots of an equation, for instance:
r^4 + r^3  7r^2  r + 6 = 0
...completely by hand. Is...

Mar506 06:51 PM
mathwonk

6 
12,500 
Hiya. Is anyone familiar with solving cubics? Currently, i am able to to solve cubics where
q^2  p^3>0
however, i...

Nov2105 11:36 PM
mathwonk

10 
3,728 
Hello;
This is not a homework question, but something I was wondering about solving difference equations.
For...

Aug810 01:19 PM
FeDeX_LaTeX

7 
5,253 
Is there any software packages available to solve Differential equations(first order and second order)? This will be...

Apr2711 06:55 AM
dalcde

5 
1,263 
Take for example a system of differential equations:
dx/dt=f(x,y)
dy/dt=g(x,y)
If I plot the surfaces for f(x,y)...

Feb1513 06:12 AM
Simon Bridge

3 
730 
Hello there,
I am a mechanical engineer and am attempting to build an Excel document for calculations purposes.
...

Jul910 10:00 AM
Mentallic

4 
855 
Hello there,
I need some help rearranging a combination of equations and was wondering if someone could help? I am...

Oct413 09:41 AM
CompuChip

3 
697 
need hint/help or perhaps a solution :smile:
Equations are from Propeller Blade Theory. I´m trying to figure out how...

Mar1712 06:24 PM
D H

2 
1,184 
Hello,
Okay, I have finally worked out a decent curve to work with which is in accordance with my previous post...

Dec1412 04:04 PM
symbolipoint

15 
1,249 
how would i solve X=(Y+Z/N)^N?

Nov1403 12:29 PM
dduardo

2 
1,524 
Hi,
I have been trying to solve some mechanics problems and I can come up with the right equation, but I don't know...

Apr510 07:02 PM
Gerenuk

4 
5,715 
Hi
I have an equation:
tan(x) = sqrt(t/x + 1)
t is a constant.
How do I solve for x using Python and/or...

Mar512 06:13 AM
Avatrin

0 
769 
I was just wondering about solving equations like: f(g(x)) = h(j(x)) where each function would be written in some...

Aug1911 04:00 PM
bfr

0 
934 
I am trying to solve an equation that involves substitution.
I was given k= 7 in the equation n=k+c
i was also...

Apr1412 04:22 AM
Stephen Tashi

3 
925 
Are there general methods for solving equations of the form
a+bx = mod(c+dx, m),
where, in the notation I have...

Dec3112 01:26 PM
mfb

7 
1,053 
I have an expected value problem where z is a desired expected value and I want to reach and x is an amount I can...

Feb614 10:23 AM
tlonist

0 
361 
We know how to solve problems like e^ax+e^bx=k,
when a=2b. But how to solve equations of this type when a is not...

Apr1711 11:48 AM
cloud360

2 
1,530 
There is one problem that I can't seem to figure out how to do, and I was wondering if someone could help me. Problem:...

Feb1205 09:08 PM
dextercioby

2 
2,554 
Can anyone show me how to solve the following equations:
2^(x1)2^(x)=2^(3)
3^(x+1)+3^(x)=36
I would greatly...

Sep2108 08:39 PM
SnipedYou

2 
1,122 
Hello,
The following problem is bothering me quite a bit. It is...
Solve.
3 x 2^x = 12
The Unit this...

Jan1904 11:10 AM
JDK

10 
11,481 
My confusion comes from basic exponent rules and whether or not both sides of an equation have to have the same level...

Mar3014 05:23 PM
1MileCrash

3 
381 
Dear everyone.
First of all Merry Xmas, when everybody gets to that.
I have a problem solving for a factor...

Dec2113 09:03 AM
scurty

6 
508 
Hey guys, this is a little silly question but it bothers me. Im not a math genius (yet i hope) and im still in...

Aug114 02:33 AM
Borek

10 
378 
How do I find solutions for an equation like:
x(1+1/y)+((y**3)/x)(x**2)(4/y)=(y/2)y+(4)(y**4)4
Another, less...

Sep1311 08:07 AM
allo

6 
2,579 
sin( degtorad( (180  (180  360/x))/2 ) ) = y/z
degtorad(degrees) means the the degrees inside the parenthesis are...

Apr506 06:03 AM
HallsofIvy

4 
6,302 
I have an equation, where acceleration is affected by a driving power and air resistance. The acceleration is given...

Dec3113 10:25 PM
NascentOxygen

7 
654 
Not really sure where this question belongs in this forum...
I was solving an engineering problem and I got to the...

Mar2314 07:15 AM
mfb

4 
435 
This is the first time ive used this forum and i really could use someones help on how to solve for C in my formula...

Sep704 06:02 AM
Ethereal

3 
2,986 
In an experiment I am performing, I observed the following:
Result is directly proportional to A
Result is...

Jul2709 11:19 PM
EliteLegend

4 
988 
I'm having some trouble understanding how to solve for i. This is the formula for compounding intrest. I'm reading...

Oct2307 08:31 AM
HallsofIvy

3 
9,681 
Sinθ=opp/hyp
Sinθ=5/3
Sinθ=1.6
I know the answer is 35.87°. I would like to convert 1.6 to 35.87° but am...

Sep414 06:58 PM
Mark44

5 
224 
Hi, I am stuck on even how to start to solve for T
the equations is:
0 = Vi / K (1  e^kt)(sin theta) + (g /...

Apr1503 07:40 AM
Matt Jacques

9 
3,453 
Say I have x^2 + 1 = 0 mod 7, it is clear that adding a linear polynomial congruent to 0 will give away the solution;...

Oct1407 03:17 PM
mathwonk

3 
1,422 
I have a word problem with the equation being:
h=1.55cos+2.7
Then it says let h=3.2, how do I solve...

Dec1610 02:49 PM
HallsofIvy

4 
2,599 
Ok i know this should be a relatively simple equation but i haven't done this stuff in so long i can't remember how to...

Jan1308 01:21 AM
olgranpappy

2 
8,691 
Hi,
I have an equation:
\frac{q\bar{q}}{w_{i}^{2}+w'_{j}^2}=\sum^{n}_{i=0}\sum^{m}_{j=1}F_{0}\cdot a_{ij}\cdot...

May3012 07:33 PM
sebasbri

2 
1,004 