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

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 Algebra: Polynomials, rational expressions and equations Solvers Lessons Answers archive Quiz In Depth

 Question 56529: I need help simplifying mixed quotients. Simplify the complex fraction. 9+3/x _________ x/4+ 1/12 Click here to see answer by funmath(2925)

 Question 56436: can someone help me multiply this rational expression? 4x-24/x^2-2x X 8x/6-x Thanks so much! ac Click here to see answer by ankor@dixie-net.com(15623)

 Question 56599: Please help me find the solutions to (1/(x-3)^2)+(2/(x-3))-24=0 I came up with the solution set as {11/4,19/6). I don't think this is right. Please steer me in the right direction. Click here to see answer by stanbon(57219)

 Question 56782: I am trying to find all zeroes of P(x) = 6x^4 - 7x^3 - 8x^2 + 5x. Using synthetic division, I see that the upper bound is 2 and the lower bound is -2. Using Descartes rule, I found that there are 2 or 0 positive real zeroes and 1 negative real zero. Is this correct? Because shouldn't there be 4 zeroes altogether due to the leading coefficient having a degree of 4? And complex zeroes only come in two's (pos & neg), so I have no way to combine these options to create 4 zeros. Where have I gone wrong? Click here to see answer by stanbon(57219)

 Question 57100: How do you write an expression for a polynomial of degree 3 with zeros, x= -3,1,-1 and f(2)=15? Click here to see answer by stanbon(57219)

 Question 57102: I need help listing the possible rational zeros of f(x)= 4x^3+12x^2-x+15, by using the rational zeros theorem. Could anyone help? Click here to see answer by stanbon(57219)

 Question 57101: How do you find zeros and their multiplicities for f(x)= (x-4)(x+5)(x^2-9)? Thank you. Click here to see answer by stanbon(57219)

 Question 57156: express the sum of 4x^2-3x+5 and (x-3)(x-2) as a trinomial. MY QUESTION: if i do this correctly, would the answer be -3x+5x^2+11? Click here to see answer by funmath(2925)

 Question 57343: Factoring Trinomials by Trial and Error b) y=-2x2 + 28x - 26 with the factorial form c) y=-9x2 + 72x + 81 with the factorial form Click here to see answer by Nate(3500)
 Question 57343: Factoring Trinomials by Trial and Error b) y=-2x2 + 28x - 26 with the factorial form c) y=-9x2 + 72x + 81 with the factorial form Click here to see answer by CrazyMan Jr.(21)

 Question 57110: Find a polynomial with leading coefficient 1 and degree 3 that has -1, 1, and 3 as roots. Click here to see answer by Edwin McCravy(8879)

 Question 57339: Perform math operations as indicated x^ + 2xy + y^2/x+y x x^2 - y^2/x-y This is what I have (x^2 + 2xy + y^2) I don't know if I did this right Thanks, dnn Click here to see answer by funmath(2925)

 Question 57372: 3x/14-x/14 subtract. Express in simplest form. Thank you Click here to see answer by Nate(3500)

 Question 57355: I dont understand this problem any help is appreciated, Thank you! x/x-4- 1/x-1 divided by x/x-1+ 2/x-3 Click here to see answer by stanbon(57219)
 Question 57355: I dont understand this problem any help is appreciated, Thank you! x/x-4- 1/x-1 divided by x/x-1+ 2/x-3 Click here to see answer by funmath(2925)