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

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

Question 425439: Simplify by dividing x^3+2x^2+3x-6/x-1. I do not understand the few answers that are already on this site. I cannot substitute the letters with numbers.Please help!
Click here to see answer by Gogonati(855)

Question 425461: (xy+x-y)from(xy+x-3)

Having trouble with this problem i know you combine like terms. Can you give me step by step instructions how to work this problem out. THanks in advance.
Click here to see answer by ankor@dixie-net.com(22740)

Question 425595: Simplify the rational expression.

Please help me with this.
Click here to see answer by htmentor(1343)

Question 425700: 9(x+3)=4x-3
Click here to see answer by stanbon(75887)

Question 425605: Simplify the complex fraction.

Help with this please.
Click here to see answer by ankor@dixie-net.com(22740)

Question 425735: Can someone please explain to me how to solve problems number 11 and 14 thank you

Click here to see answer by Alan3354(69443)

Question 425764: I already know the answer as .
However, I would enjoy knowing how to do it. XD I don't quite recall the process, and can't figure out where I have to divide, and what. I would appreciate it if you would start from the beginning and explain how to work the problem. I greatly appreciate it, and look forward to your reply.
Click here to see answer by stanbon(75887)

Question 425600: Simplify the rational expression.

Can you help me.
Click here to see answer by jsmallt9(3758)

Question 425770: factor this polynomial 27r^2-12s^2
Click here to see answer by jsmallt9(3758)

Question 425608: Find the LCD of the rational expressions in the list.
,

thank you for the help.
Click here to see answer by jsmallt9(3758)

Question 425972: (a+2)(3a2-a+5)
in (3a2-a+5)(3a is to the second power)
Please work this problem out so i can see what i am doing work. Thanks

Click here to see answer by Theo(13342)

Question 425969: Hi. I am having a difficult time trying to figure out of to factor the trinomial. If you could help, that would be greatly appreciated.
2a^2 + 30a + 100. Thanks so much.
Click here to see answer by nerdybill(7384)

Question 425977: Multiplying binomials
(c-3)(c+1)
Click here to see answer by stanbon(75887)

Question 426069: form a polynomial with zeros:-2,2,3 and degree:3
Click here to see answer by ewatrrr(24785)

Question 426028: x^2-20/x^2-7x+12=3/x-3+5/x-4 Solve
Not sure if I am multiplying correct LCD--- (x-4)(x-3)
I ended up with (x-7)(x-1) =0! Not sure at all about my answer! Help me! PLEASE!!!
Click here to see answer by jsmallt9(3758)

Question 426326: I worked these problems out and i just want to verify if i got the correct answers, please be kind enough to let me know if they are incorrect and if so then why?...Thanks.!
1.Which type of variation is represented by a1b1 = b2a2?
1. inverse
2. direct
3. joint
4. none
A?
--------------------
2. Suppose y varies directly as x. If y = 5 when x = 15, find x when y = 9.
1. 3
2. 6
3. 12
4. 27
D?
-----------------------
3.Suppose y varies inversely as x. If y = 2 when x = 14, find y when x = 7.
1. 1
2. 4
3. 6
4. 8
B?
-----------
4.Suppose y varies jointly as x and z. If y = 10 when x = 2 and z = 4, find y when x = 4 and z = 3.
1. 6
2. 12
3. 15
4. 20
C?

Click here to see answer by sudhanshu_kmr(1152)

Question 426373: factor completely 6a^2-19as+15s^2
Click here to see answer by mananth(16946)

Question 426396: factor completely 6a^2+13ad+6d^2
Click here to see answer by mananth(16946)

Question 426397: factor b ^3+8
Click here to see answer by mananth(16946)

Question 426399: solve using the principle of zero products s(s+5)=0
Click here to see answer by edjones(8007)

Question 426403: factor
b^3+27
Click here to see answer by Gersid(33)

Question 426428: I really need your help, I tried this and keep coming up with the wrong answer.-------> solve (4a-3)=a+13/a+1.... the answer I got was 2,-2 but was wrong.. thanks
Click here to see answer by edjones(8007)

Question 426427: I really need your help, I tried this and keep coming up with the wrong answer.-------> solve the following equation for x...x+2/x+4=x-4/x+5... the answer I got was -26/7. thanks
Click here to see answer by linh117(31)

Question 426440: I really need your help, Solve....x+5/x+6=x-2/x+4,,,thanks
Click here to see answer by ewatrrr(24785)

Question 426440: I really need your help, Solve....x+5/x+6=x-2/x+4,,,thanks
Click here to see answer by jsmallt9(3758)

Question 426432: I really need your help, Solve for the following equation x.....
7/x-4+1/x+4=-7x/x^2-16
Click here to see answer by jsmallt9(3758)

Question 426540: State the domain of the given rational expression in set-builder notation.
8x(2) + 1
______________
2x(2) - 5x -3
Click here to see answer by ewatrrr(24785)

Question 426540: State the domain of the given rational expression in set-builder notation.
8x(2) + 1
______________
2x(2) - 5x -3
Click here to see answer by jsmallt9(3758)

Question 426606: write 448,000 in scientific notation
Click here to see answer by Adrish(44)

Question 426603: keeping in mind the general form of the quadratic equation, identify the a, b, and c values for 4x^2+3x+80=0
a=
b=
c=

Click here to see answer by ewatrrr(24785)

Question 426604: (40480/72081)^0=
Click here to see answer by Adrish(44)

Question 426602: is 43 a prime number?
Click here to see answer by htmentor(1343)

Question 426602: is 43 a prime number?
Click here to see answer by ewatrrr(24785)

Question 426601: is 10x^3y^6 a monomial?
Click here to see answer by jsmallt9(3758)

Question 426435: I really need your help, Solve.....2-a-7/a+4=a^2-5/a+4...thnks
Click here to see answer by jsmallt9(3758)

Question 426617: I asked this question earlier but really don't understand it
(40480/72081)^0=
so it looks like this the 40480 is on top and the 72081 is on bottom, the whole thing has parenthesis around it. with the 0 on the outside on top as in to the 0 power.
please help with explanation, thankyou
Click here to see answer by jsmallt9(3758)

Question 426639: (4x^2+4x+8)+(2x^2+x-7)=
also trying to understand how to do it.

Click here to see answer by ewatrrr(24785)

Question 426661: subtract
(7m^2-20)-(4m^2-4)=
also please explain how I should do this
thankyou so much
Click here to see answer by ewatrrr(24785)

Question 426636: add (6a+77)+(8a-28)=
don't know the steps to get the answer.
Click here to see answer by sudhanshu_kmr(1152)

Question 426761: factor. check by multiplying
6x^6y^4+48x^4y^3+48xy=?
Click here to see answer by stanbon(75887)

Question 426759: factor the trinomial
s^2-3sd-10d^2
the answer is?
Click here to see answer by jorel1380(3719)

Question 426758: factor by grouping
5s^2+17s-40=?
Click here to see answer by jorel1380(3719)

Question 426739: The initial velocity of a rocket shot straight upward is 40 ft/sec. The height of the rocket after t seconds is given by the formula h(t) = -16t(squared) + 40 t. What is the maximum height the rocket reaches? When will it land? Show and explain work.
Click here to see answer by josmiceli(19441)

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17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 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36721..36765, 36766..36810, 36811..36855, 36856..36900, 36901..36945, 36946..36990, 36991..37035, 37036..37080, 37081..37125, 37126..37170, 37171..37215, 37216..37260, 37261..37305, 37306..37350, 37351..37395, 37396..37440, 37441..37485, 37486..37530, 37531..37575, 37576..37620, 37621..37665, 37666..37710, 37711..37755, 37756..37800, 37801..37845, 37846..37890, 37891..37935, 37936..37980, 37981..38025, 38026..38070, 38071..38115, 38116..38160, 38161..38205, 38206..38250, 38251..38295, 38296..38340, 38341..38385, 38386..38430, 38431..38475, 38476..38520, 38521..38565, 38566..38610, 38611..38655, 38656..38700, 38701..38745, 38746..38790, 38791..38835, 38836..38880, 38881..38925, 38926..38970, 38971..39015, 39016..39060, 39061..39105