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

Tutors Answer Your Questions about Polynomials-and-rational-expressions (FREE)

Question 36714: How would I solve a complicated polynomial like
Click here to see answer by longjonsilver(2297)

Question 36757: HELP ME SIMPLIFY THIS PPLEASEEEE!
I must show my work! Thank you kindly!
-9n(1-n) + 4(n^2+n)
Click here to see answer by stanbon(57203)

Question 36817: evaluate 5m-2n for m = -3 and n = -2
is the answer -19?
Click here to see answer by vidhyak(94)

Question 36778: x² = x + 110
Click here to see answer by vidhyak(94)

Question 36877: (2x+6) (3x-7)=
Click here to see answer by Alwayscheerful(414)

Question 36929: hi, i need help on these kind of problems solve for x, then write the equation as a polynomial. the problem is (x-3)(x-2)=0 thank you
angel
Click here to see answer by Alwayscheerful(414)

Question 36943: simplify please
(3x+2)(7x+4)
is the answer 10x+6? or 21x+8?

Click here to see answer by checkley71(8403)

Question 36938: can someone please simplfy this for me, i dont understand the solver, thank you so much..
(5x^3+8x^2-4x)+(3x^2+7x+1)
Click here to see answer by mbarugel(146)

Question 36974: I forgot how to multiply a binomial by a trinomial. I can't use the FOIL method, can I? Here's the problem: (4m+3)(4m-5m+6)
Click here to see answer by checkley71(8403)

Question 36999: Please help with this:
Solve each equation by factoring.

Click here to see answer by vidhyak(94)

Question 36999: Please help with this:
Solve each equation by factoring.

Click here to see answer by checkley71(8403)

Question 37023: Factorization of c^3-64.

Click here to see answer by jcmtnez(53)

Question 37042: factor 9x^2-25x-6
Click here to see answer by checkley71(8403)

Question 37044: factor
8x^2+54x-45
Click here to see answer by wuwei96815(245)

Question 37081: i need some help on problem number 30 in algebra structure and method book 1. the problem is 0=3(1-2t)-5(2-t). here is how i did it,
0=3-6t-10+5t
then
0=-7-6t+5t
0=-7-1
that is as far i can go. help?
Click here to see answer by wuwei96815(245)

Question 37080: Please Help me with this equation:(4n-8m)(4n+8m)

Click here to see answer by wuwei96815(245)

Question 37137: Solve for x: 1 1 22 ——————— + ——————— = ————————— x - 4 x + 4 x² - 16

Click here to see answer by AnlytcPhil(1276)

Question 37140: 3x² - 6x —————————— 3x

Click here to see answer by AnlytcPhil(1276)

Question 37138: Find a polynomial of degree 3 with roots 2i, 1, and 3.
Find the rational roots if they exist of x3-3x2-2x-8
Determine the positive and negative real roots of 2x5+x4-3x3+x2-x+1
Find the other roots of x3+4x2-7x-10 if one root is 2
Click here to see answer by AnlytcPhil(1276)

Question 37032: I need to simplify rational expression
Here is my problem i am having trouble with
2x^2 - 3x -9 / 2x^2 + 3x -9

Any help please, it would be great
Click here to see answer by fractalier(2101)

Question 37262: I need to factor by grouping, if possible, and check.

Click here to see answer by checkley71(8403)

Question 37222: Between April 1,2004, and May 1,2004, the world populationgrew from approximately 6,358,000,000 to 6,364,000,000. What is the growth rate per month given in scientific notation?
Click here to see answer by stanbon(57203)

Question 37266: I am having trouble. I need to factor completely. If a polynomial is prime, state this.
x^2-11xy+24y^2
Click here to see answer by stanbon(57203)

Question 37278: Please help me. I need to factor completely. Look first for common factor, if polynomial is prime, state this,

Click here to see answer by checkley71(8403)

Question 37276: Help! I need to factor completely. If a polynomial is prime, state this.

Click here to see answer by checkley71(8403)

Question 37276: Help! I need to factor completely. If a polynomial is prime, state this.

Click here to see answer by venugopalramana(3286)

Question 37328: Im having trouble with the following question:
Solve the following (be sure to check for extraneous roots)
x/5[SQRT(2x+10)]+1/[SQRT(2x+10)]=1/5
My teacher tould me to try changing 1/[SQRT(2x+10)]to 5/[5*SQRT(2x+10)].
I tried to simplify it and got to 12x/25+1/[SQRT(2x+10)]=1/5
I'm stuck and don't know what to do. Any help would be greatly appreciated. Thank you!
Click here to see answer by longjonsilver(2297)

Question 37340:
Click here to see answer by AnlytcPhil(1276)

Question 37241: 7m^2n-21mn+49mn^2
Click here to see answer by fractalier(2101)

Question 37285: Please help factor completely
b^4a-81a^5
Click here to see answer by fractalier(2101)

Question 37334: Simplify 4 sqrt 16x^3y^2 - 5y sqrt 4x^3. Not sure how to handle this. Any help is greatly appreciated.
Click here to see answer by checkley71(8403)

Question 37260:
Click here to see answer by checkley71(8403)

Question 37482: Simplify and please show work. Thanks!

Click here to see answer by stanbon(57203)

Question 37551: I cannot figure this out, please help! The volume of the box is represented by (x^2 + 5x + 6)(x + 5). Find the polynomial that represents the area of the bottom of the box.
Click here to see answer by fractalier(2101)

Question 37552: If the first side of a triangle is 3/4x, the second side is 1/x^2 and the third side is 5/x^2, find an expression that represents its perimeter.
Click here to see answer by jcmtnez(53)

Question 37556: Can you show me how to solve this? 5a-12/a^2-8a+15 - 3a-2/a^2-8a+15
Click here to see answer by vidhyak(94)

Question 37558: Could you please help me figure out this problem.
4y/y^2+6y+5 + 2y/y^2-1
I keep coming up with 2y^2/6y+5
Is this right, should it be broken down more?
I appreciate your help!
Click here to see answer by fractalier(2101)

Question 37461: y=(x+1)(x-2)=0
Click here to see answer by fractalier(2101)

Question 37561: Can someone please help with this? I don't understand!
If the length of one side of a rectangle is x/2x-5 and the width is 8/2x-5, find the perimeter of the given figure.
Would it be 6?
Click here to see answer by fractalier(2101)

Question 37216: Factor the following polynomials 2x^2-2x-12 and 4x^2-12x+9
Click here to see answer by fractalier(2101)

Question 37619: The problem is : . We have to factor each expression as a trinomial. I found the factors of three : 1 & 3 , but it says in the book that one of the factor pairs has to equal "b" which is supposed to be 5. This doesn't make sense to me.
AJ
Click here to see answer by venugopalramana(3286)

Question 37647: I am having problems trying to solve rational expressions with different denominators I am completely lost as how to solve this problem please help me.Thank you.
x-1 x+4
_____ + ________
x^- x- 12 x^+5x+6
the x^ like that mean that they are to the 2nd power Sorry but when I preview my question it gets jumbled up it should be x-1 over x to the 2nd power subract x subract 12 plus x+4 over x to the 2nd power plus 5x plus 6. Thank you again
Click here to see answer by longjonsilver(2297)

Question 37674: I submitted the following question previously and the answer included this symbol ~, what does this symbol mean within the answer:
and answer was 7t(t~2+1)-5(t~2+1) or (7t-5)(t~2+1)
Click here to see answer by jessicaherndon(6)

Question 37711: rewrite the middle term as the sum of two terms and then factor by grouping
x^2+9x+20
Click here to see answer by checkley71(8403)

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