Did anyone have a hard time with  equations using Gauss/Jordan?
396715
Took it last quarter, looked at it like a puzzle.  A puzzle is fun, math is not.  You start with the matrix given in the problem, and have to finish with ending matrix given.  Do what you need to do to get to the last matrix.  The best part, if you mess-up, just do another set.  There are no wrong answers, try doing it like a puzzle, more fun than Soduko.  Good Luck
810644
you need to do a bunch of problems to get comfortable with formulas and with the math.  just do all the problems in the back of the book and you'll be fine.  if you're still having problems go see your professor or TA
952049
just browse over formulas which are tough for u... and review how to do steps to problems that have been tough. otherwise u should b ok. good luck
754643
im taking Trig. try finding a homework helper web page. or go to the book that ur learning from web page because the majority of the times they have practice help on there.
512548
Now keep in mind I am a recent college graduate...but I remember when I took Algebra 2, I struggled some...ended up with like a B (I think..hard to remember those details).  I did much better with Geometry though-so thats cool. I enjoy math though-isn't that ironic? I did very well in college though.
863469
I think it's math! I've had trouble with it =) maybe chemistry also
756992
Don't you just love the quadratic equation?\n\nThe first thing you got to do is get the given equation into the correct form, and in order to do that you have to combine all like terms. Since there are no like terms yet you have to do some math first.\n\n-2.0^2 = 4.0because neg * neg = pos\n\nNow you have 2 like terms 4.0 and 0.5 combine to get 4.5. Your eqution should look like this:\n\nf(t)=10t + 4.5 since you need at^2 + bt^2 + c just insert t^2. Now your equation will look like this:\n\nf(t)=t^2 + 10t + 4.5\n\nAnd just in case you need the quadratic equation:\n\nt= -b + or - sqr(b^2 - 4ac) / 2a\n\noh yeah and a = 1
1017997
The equations are wrongor insufficient. Post the correct data if you want me to help/ Alternately, you could also message me.
1056171
Try www.purplemath.com it shows you how to work out problems step by step
1185586
this has happened to me before on my 89. it's usually when the expression is too complicated--that is, it would take the calculator more memory than it has to solve it. so i'd recommend trying to first simplify the expression and then enter it. For instance, don't leave things in terms like sin(2) when you can just get an approximate number for that. maybe that's it?
1075376
wow..that site http://www.algebra.com/services/renderin... is really amazing. You can also check out mupad. It will do simplifications and give answers to integration and much more. There's a demo available at http://www.sciface.com/
188200
I had trouble with the same thing. The best way, and it's worked till now in college, is to take the most complicated element used (i.e. CH3OOH + C2H3O9 ---> etc), figure out O's first since O is used the most. Then work backward using the 2nd most used element. You might get a non-reduced form of balancing, but you can check whats divisible (i.e.  4CH + 2 CH2H3O2 <---> 4 OH + 2 CH3; all divisible by 2 so it'd be 2, 1, 2, 1 respectively). See if this works, it's worked when I've helped other people in the past as well.
374428
The most strait forward way is to use the quadratic formula. You just do simple adding, powering, rooting, and you get the answer. It works the 100% of the time. There is also the filling-in-the-square, but that's too much work compaired to the quadratic formula.
145305
Use cubic equation \ny=ax3+bx2+cx+d\n\nSince you have four points data you can get four linear equations with four variables which is very easy to solve, get variables (a,b,c,d) and plug the values to cross check and see u will get answer. Use guass jordan or elimination method.
1074681
Haha, I had that for 3 years when I was in high school.  The presentation of the problems are too PC for me, but the actual math concepts they taught were good.  But most people in IMP math hated it, and tried to get bumped up into the more traditional geo/trig or algebra.
953940
Hi again \n\nY = √2x – 3 \n2x – 3 = y ²\nX =( y ² + 3 )/ 2\nf –¹ (x)  =( y ² + 3 )/ 2  =>   f –¹ (x)  = (x ² + 3 )/ 2   &  x ≥ 0 \n\nGood Luck \n try to solve them yourslef again if you got wrong , am sure you can solve them correctly , if you just try your best
775488
Ok, Victoria, if you're going to ask for help you have to write the questions correctly.  Problem 1 cannot be solved using algebra the way you wrote it, I doubt you can use complex integration or any other advanced tool to solve that one.  Unfortunately, I just spent the last half hour manipulating it before I remembered that little fact.\n\nPut parentheses in.  Had you put the parentheses in the problem would have been trivial.  Kudos to the helpers who were smarter than I in figuring out the constants were in the exponent.  It's not that hard Victoria, especially when you're asking for help.\n\nWrite the question correctly.\n\n\nPS. Irma, you forgot to multiply the 2 from 4=2^2 through the whole parenthetical statement.  The answer is x=4.\n.