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

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 Question 639164: How "simple" do we need to be when asked to "simplify"? My equation reads: All I have done is simplify the denominators via foil: . What else can I do with this? Did I even start the right way? Thanks :) Click here to see answer by Tatiana_Stebko(1410)
 Question 639164: How "simple" do we need to be when asked to "simplify"? My equation reads: All I have done is simplify the denominators via foil: . What else can I do with this? Did I even start the right way? Thanks :) Click here to see answer by MathLover1(7480)

 Question 639234: Factor X²-2x-63 completely. If polynomials is a prime state so. Click here to see answer by asuar010(324)

 Question 639304: How do I factor 25y^2 - 10y + 1? I thought it was a perfect square trinomial, but that doesn't make sense because of the + 1. And I tried factoring it out by taking 5y out, but that doesn't match the answer in the back of my book. I don't know how they got that answer. The answer to the question is (5y - 1)^2. Click here to see answer by Alan3354(34677)
 Question 639304: How do I factor 25y^2 - 10y + 1? I thought it was a perfect square trinomial, but that doesn't make sense because of the + 1. And I tried factoring it out by taking 5y out, but that doesn't match the answer in the back of my book. I don't know how they got that answer. The answer to the question is (5y - 1)^2. Click here to see answer by aquyu214(10)
 Question 639304: How do I factor 25y^2 - 10y + 1? I thought it was a perfect square trinomial, but that doesn't make sense because of the + 1. And I tried factoring it out by taking 5y out, but that doesn't match the answer in the back of my book. I don't know how they got that answer. The answer to the question is (5y - 1)^2. Click here to see answer by MathTherapy(1817)

 Question 639308: how do you factor the following? 4x^2 -9y^2 Click here to see answer by MathLover1(7480)

 Question 637522: what is the maxium y value for f(x)=x^2+6x+8 Click here to see answer by aquyu214(10)

 Question 639683: I have tryed to figure out this equation. The book says it's solving Quadratic Equations by factoring. The answere is (-3,7) The computor says it's not possible to solve, Will you show me how to solve it please x^2-4x=21 Thank you! Click here to see answer by reviewermath(721)
 Question 639683: I have tryed to figure out this equation. The book says it's solving Quadratic Equations by factoring. The answere is (-3,7) The computor says it's not possible to solve, Will you show me how to solve it please x^2-4x=21 Thank you! Click here to see answer by MathLover1(7480)

 Question 639844: I hope this is the right section. How would I factor x^2 -y^2 +x -y? The answer is (x-y)(x+y+1) However I get 4(y+x)(y-x)(x-1) when I try. Click here to see answer by jim_thompson5910(29613)

 Question 639899: if f(x)= ax² + bx + c is divided by x+2, x-1, and x-3, it leaves a remainder of 64, 1, and 22, respectively. find a + b + c? Click here to see answer by Edwin McCravy(9717)

 Question 640058: A circular pond has a radius of 2x - 3 which expression describes the area of the pond Click here to see answer by solver91311(18785)

 Question 640144: If three more than x is two more than y...What is x in terms of y? Click here to see answer by josh_jordan(118)

 Question 640353: Please help! I need to solve for x x/r-h=4 Beside it it has in parenthesis r=0 with a line through the equal sign. Please show work, I need to know how to do this stuff. Click here to see answer by ankor@dixie-net.com(16524)

 Question 640412: Could you help me with this problem about factoring polynomials completely 4x^4+38x^3+34x^2 Thank you for your time and help! Click here to see answer by Alan3354(34677)

 Question 640410: Could you help me with this problem about factoring polynomials completely 25x^2-9y^2 Thank you for your time and help! Click here to see answer by Alan3354(34677)

 Question 640409: Could you help me with this problem about factoring polynomials completely x^2-49 Thank you for your time and help! Click here to see answer by jim_thompson5910(29613)

 Question 640407: Could you help me with this problem about factoring polynomials completely 2x^2+5x-12 Thank you for your time and help! Click here to see answer by jim_thompson5910(29613)

 Question 640405: Could you help me with this problem about factoring polynomials completely 6x^5-18x^2 Thank you for your time and help! Click here to see answer by jim_thompson5910(29613)

 Question 640406: Could you help me with this problem about factoring polynomials completely 12x^2-20x Thank you for your time and help! Click here to see answer by jim_thompson5910(29613)

 Question 640408: Could you help me with this problem about factoring polynomials completely 4x^2-20x+25 Thank you for your time and help! Click here to see answer by jim_thompson5910(29613)

 Question 640411: Could you help me with this problem about factoring polynomials completely 12x^3+8x^2-20x Thank you for your time and help! Click here to see answer by jim_thompson5910(29613)

 Question 640515: Sorry if this is the wrong topic but Is this even possible to factor out a binomial? 6x^2+17x-40 Click here to see answer by jim_thompson5910(29613)

 Question 640548: I need to know how to both solve this and teach my daughter how to solve this for her homework w+1/2 = w/4+2 Click here to see answer by jim_thompson5910(29613)