Questions on Algebra: Polynomials, rational expressions and equations answered by real tutors!

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Question 57384: hello i need some help with this problem

thanks in advance for your help :)
Click here to see answer by funmath(2873)

Question 57402: Factoring Trinomials by Trial and Error
8x^2-28x+20
Click here to see answer by funmath(2873)

Question 57403: Factoring Trinomials by Trial and Error
18x^3y+36x^2y-32xy
Click here to see answer by Nate(3495)

Question 57111: The polynomial f(x) divided x-3 results in a quotient of x^2+3x-5 with a remainder of 2. Find f(3).
Click here to see answer by stanbon(26297)

Question 57478: We are in rational expressions there is no book here is problem that I have
x^2 + x - 2 / x^2 - 1 =
My final answer is (x+2) / (x + 1) I have conflicting answers from one of my fellow students. Could you please help?
Thanks,
dnn
Click here to see answer by funmath(2873)

Question 57533: x^2+169
Click here to see answer by checkley71(8405)

Question 57576: I am having trouble with this problem and I would appreciate any help:
5x^6y^2/x^8y
Thank you very much
Click here to see answer by stanbon(26297)

Question 57580: w^3+5w^2-w=5
can someone please help. thank you in advance
Click here to see answer by funmath(2873)

Question 57619This question is from textbook
: I need help solving this problem.
Thanks
(2x^2+11x-5)/(x+6)This question is from textbook

Click here to see answer by funmath(2873)

Question 57531: x^2+25x-84
Click here to see answer by tutorcecilia(2042)

Question 57666: what I need to siplify is 5x(squared) + 15x over x(cubed) + 27.
Click here to see answer by funmath(2873)

Question 57681This question is from textbook

: Simplify the complex fraction.
3/a+3 +1 divided by 9/a-3 +1
I tried multiplying both the numerator and denomiator by a+3, but then I didn't know what to do with the a-3 on the bottom. I think the +1 cancels out, and 3 can be divided into botht he 3 and 9, but I'm just not sure how to continue. Thanks.
This question is from textbook

Click here to see answer by funmath(2873)

Question 57746This question is from textbook mcdougal littell

: r=ab/a+b ;a solve for aThis question is from textbook mcdougal littell

Click here to see answer by stanbon(26297)

Question 57746This question is from textbook mcdougal littell

: r=ab/a+b ;a solve for aThis question is from textbook mcdougal littell

Click here to see answer by funmath(2873)

Question 57752This question is from textbook Elementary Algebra

: I am not sure why my problem is not turning out right, could somebody please help me!!!?
addition and subtraction of rational expressions
Ch6.4 #51 x-3 over x^2+10x+25 plus x-3 over x+5
i have got this so far as my answer but it is not coming out to the right answer in the back of the book
x-3 over (x+5)(x+5) plus x-3(x+5) over x+5(x+5)
which = x^2+5x-3x-15 over (x+5)^2
This question is from textbook Elementary Algebra

Click here to see answer by funmath(2873)

Question 57770: please help me factor this problem!!
(x+y)^2+3(x+y)+2
Click here to see answer by funmath(2873)

Question 57771: I need help factoring this:
15a^2b^2-10ab^4+5ab^2
Click here to see answer by funmath(2873)

Question 57776This question is from textbook Hawkes Intermediate Algebra
: Ok, this is my question and actually this might be too late but I am struggling and I need this to be turned in by 11:59 P.M. so that gives me 1 hour to get this question. It is...
x-2/4-x - 7/2x+1 = 0

I just did this problem but w/out the =0 and we just had to Simplify and got 2(x^2+2x-15)/5x+4 but I am unsure how to solve for x? If you could help me out as soon as possible that would be GREAT...thank you so much!
You can e-mail me at Zoe228@aol.com and I will respond faster, THANKS!This question is from textbook Hawkes Intermediate Algebra

Click here to see answer by oberobic(93)

Question 57840: C= nE/(R+nr)
You are supposed to find n.
Thanks, Danielle
Click here to see answer by funmath(2873)

Question 57840: C= nE/(R+nr)
You are supposed to find n.
Thanks, Danielle
Click here to see answer by phillv(13)

Question 57839: C= nE/(R+nr)
You are supposed to find n.
Thanks, Danielle
Click here to see answer by Earlsdon(4900)

Question 57841: what is the simplyfied answer of
[(8y^3 -27)/(64y^3-1)]/[(4y^2-9)/(16y^2+4y+1)]
Click here to see answer by funmath(2873)

Question 57887: ...having trouble with this - could anyone please help?
(3x-2)(5x-4)
–––––––––––––
(9x-6)(7x-1)
Thank you!
Click here to see answer by funmath(2873)

Question 57889: My apologies, I forgot to add this part of the question, so I will ask again, sorry!
For what values of x is the following expression undefined:
(3x-2)(5x-4)
____________
(9x-6)(7x-1)
again, I appreciate the guidance!
Click here to see answer by funmath(2873)

Question 57874This question is from textbook elementary and intermediate algebra
: problem states to devide 3x^4 - 9x^3y^3 + 2x^2 by x^2yThis question is from textbook elementary and intermediate algebra

Click here to see answer by funmath(2873)

Question 57929: 6m2+mn-2n2
Click here to see answer by stanbon(26297)

Question 57995: Im lost... any help is appreciated greatly.
x-2/x-3 + x-3/x-2 = 2x^2/x^2-5x+6
((x-2)^2+(x-3)^2)/(x-3)(x-2)=2x^2/(x-3)(x-2)
(x-2)^2+(x-3)^2=2x^2
x^2-2x+4+x^2-6x+9=2x^2
-8x+13=0
x=13/8
Thanks again!
Click here to see answer by jaya_rohith1@yahoo.com(33)

Question 57990: 3/(x^2+4x+3) - 1/(x^2-9)
=3/(x+1)(x+3)-1/(x-3)(x+3)
=(3((x-3)-1(x+1))/(x+1)(x-3)(x+3)
=3x-3-x-1/(x+1)(x^2-9)
=2x-4/(x^3+x^2-9x-9)
=2(x-2)/(x^3+x^2-9x-9)

Click here to see answer by jaya_rohith1@yahoo.com(33)

Question 58013This question is from textbook College Algebra
: 25y2z-15yz2
Im supposed to factor the expression completly. if its prime so indicateThis question is from textbook College Algebra

Click here to see answer by stanbon(26297)

Question 58034This question is from textbook elementary and intermediate algebra
: the instructions say to factor;
2x^5 + 6x^4 - 8x^3
Oh please help i am getting so confusedThis question is from textbook elementary and intermediate algebra

Click here to see answer by stanbon(26297)

Question 58050: I could really use some help on this one. I tried to go as far as I could, however, I'm just not sure if the answer is correct. Thanks! Divide: (2x3 - x2 + 3x -1) ÷ (x + 2) = 2x2- 5x - 7 R 15
Click here to see answer by funmath(2873)

Question 58131: f(x)=(x+7)^2
Find the power function that the graph of f resembles for large values of [x]
Click here to see answer by stanbon(26297)

Question 58137: reduce to lowest terms
x-y
------
xy
------
x-y
-------
xy
Click here to see answer by funmath(2873)

Question 57537: 4y^5+12y^4-40y^3
Click here to see answer by BGluvsmath(64)

Question 58243: Multiply and simplify.
6x2(2x3 - 8x + 5)
Click here to see answer by funmath(2873)

Question 58284: f(x)= x(x-6)
State wheather the function is a polynomial function or not. If it is,give its degree. If it is not,tell why not.
Click here to see answer by funmath(2873)

Question 58297: How do I solve -4x+8 / 2?
When I solved the problem the first time I got 2x+1 but that did not look right then when I tried to solve it a second time I seperated them into two problems.
-4x over 2 plus 8 over 2 = 2x.
Which is the correct way to solve this problem? I am very confused:(
There is no text book refferance for this question.
Click here to see answer by checkley71(8405)

Question 58295: I am confused how to solve (-12z^4y^2)/ (-2z^10y^3)
I set it up like you would long division but it does not look right to me. Also do decending powers of z and y apply here? ( do I have to add 0z^9, Oz^8 etc. in order to solve this problem?)
My teacher makes these questions up so there is no book reference. This is for our chapter review. Thank you in advance for showing me how to go about tackling this problem.
Click here to see answer by Edwin McCravy(2922)

Question 58288: divide (x^3-27)by(x-3)
Click here to see answer by tutorcecilia(2042)

Question 58151: y-6 (over )y=5 2 (over)3b-3 (over)4=1(6b)

4 (over) a+1=8 (over)2-a

Click here to see answer by ankor@dixie-net.com(6693)

Question 58340: I'm stuck on these two, could anyone help please?
Factor the algebraic expressions completely:
6x^2 - 28x + 16
and
x^4 + 2x^3 - 3x - 6
Thank you very much!
Click here to see answer by funmath(2873)

Question 58336: 2x^2-12x=148
Click here to see answer by Nate(3495)

Question 58171: Divide 2-7x^2+x^4-2x-x^3 by x+2
Click here to see answer by funmath(2873)

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