# 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 366111: find the greatest common factor 10x^8-15x^4+20x^12 i got 5x^4 but i'm not sure thank you Click here to see answer by robertb(4012)

 Question 368054: Given f(x)= 7x+5/7x^2+5x . Find the domain and vertical asymptotes. Click here to see answer by Fombitz(13828)

 Question 368091: Hello, im 14 and in ninth grade and my lesson today was involving dividing a polynomial by a polynomial here is an example divide 3x2 - 35 + 8x by x + 5 my teacher didnt explain it well enough and i couldnt even take the first step thank you for your time. Click here to see answer by stanbon(57219)

 Question 368162: Identify the degree of the polynomial functon Let f(x) =3x^4-7x^2 + 8x - 10.Find f(-2). Click here to see answer by Fombitz(13828)

 Question 368266: What is the GCF for: 16x^2z, 40xz^2, 72z^3 Click here to see answer by mananth(12270)

 Question 368202: A magazine company had a profit of \$98,000 per year when it had 32,000 subscribers. When it obtained 35,000 subscribers, it had a profit of \$117,500. Assume P is a linear function of the number of the subscribers, S. Find the function P. Click here to see answer by robertb(4012)

 Question 368349: Express as partial fractions (3x^3+4x^2-12x+16)/(x^4-16) i understand that it is (3x^3+4x^2-12x+16)/(x-2)(x+2)(x^2+4) but am unsure what to do after that Click here to see answer by Fombitz(13828)

 Question 368447: I need help with this Multiplying polynomials FOIL method... (x^2+2x-3)(x^2-5x+7) is the problem i stopped here.x^4+7x^2-10x^2+4...i'm stuck Click here to see answer by Fombitz(13828)

 Question 368460: Find the maximum or minimum of the function f(x)=8x^2-4x+50. Click here to see answer by Fombitz(13828)

 Question 368470: Please help me!!! 1. Environmentalists are concerned that drilling for natural gas in Wyoming is having an impact on the groundwater and aquifers. The cost, in millions of dollars, to remove x % of pollution in a body of water is modeled by 8000/300-3x a. What is the cost to remove 75% of the pollutant? b. What is the cost to remove 90% of the pollutant? c. What is the cost to remove 99% of the pollutant? d. For what value is this equation undefined? e. Do the answers to sections a. through d. match your expectations? Explain why or why not. Click here to see answer by Fombitz(13828)

 Question 368488: Divide: 20xy^4 + 25xy^2 + 5xy ---------------------- 5xy Click here to see answer by Fombitz(13828)

 Question 368485: Find the value of x^3 + 3x^2 + 5 when x=-3 Click here to see answer by Fombitz(13828)

 Question 368482: Find the degree of the polynomial 3x^2 + 2x + 3 Click here to see answer by Fombitz(13828)

 Question 368453: A father and son are digging a garden that is 7 feet long and 5 feet wide. The father, working alone, can dig the garden in 3 hours. The son can do the job in 4 hours. If they both work together, how long would the two need to complete the task? Click here to see answer by Fombitz(13828)

 Question 368675: I was not in class today and they worked on Polynomials . I need to understand how to do this . Click here to see answer by solver91311(16868)