# 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 370334: Find all of the real zeros of the polynomial P(x)=2x^4-6x^3-52x^2-36x+56 Click here to see answer by jsmallt9(3296)

 Question 370206: 1/f = 1/o+ 1/i The image is in focus at distance i from the lens. For an object that is 600mm from a 50-mm lens, use f=50mm and 0=600mm to find i Use the formula above to find the image distance i from an object that is 2,000,000mm from a 250-mm telephoto lens... Please I need help with this one. Thanks.. Click here to see answer by Fombitz(13828)

 Question 370392: How can I factor this trinomial? 10a^2 - 9a + 2 Click here to see answer by stanbon(57966)

 Question 370393: How can I factor this trinomial? 4x^2 - 5xy - 6y^2 Click here to see answer by Alan3354(31518)

 Question 370471: Step by step Factor using the formula for the sum or difference of two cubes x^3y^3-1 Click here to see answer by Alan3354(31518)

 Question 370526: I am having difficulty solving this rationa expression and simplfing it can someone help? Solve x-2/x-6-4/x=24/x^2-6x Click here to see answer by stanbon(57966)

 Question 370538: Factor Completely. I have been struggling with trinomials and all nomial but could I get some insight on this problem. Our books are written horribly for us normal math folks. I could use some common sense explanation Factor Completely: a^2b + 2ab - 15b This site has been a savior because of the excellent explaination written for the common person. Click here to see answer by jim_thompson5910(28715)

 Question 370596: Explain how to determine which numbers must be excluded from the domain of a rational expression. Click here to see answer by robertb(4012)

 Question 370523: How do you solve this rational expression in proper steps x=9 Click here to see answer by edjones(7569)

 Question 370612: A rectangular painting with a width of x centimeters has an area of x^2+50x square centimeters. Find a binomial that represents the length. Any help will be appreciated since all I come up with for the length is x +50x centimeters but have no idea if this is correct Click here to see answer by scott8148(6628)

 Question 370375: Factor the following polynomials completely making use of the given zero G(x)=x^3-(1-i)X^2-(8-i)x+(12-6i);2-i is a zero Click here to see answer by jsmallt9(3296)

 Question 370439: How do u factor this trinomial 10a^2-9a+2 ? Ex. 3x^2+10x+8 (4)(2)=8 (3x+4)(x+2) (3x)(2)=6x (4)(x)=4x 6x+4x=10x Click here to see answer by jsmallt9(3296)

 Question 370737: Factor 8x3-125 Eight x to the third power minus 125 Click here to see answer by ewatrrr(10682)

 Question 370772: I'm not sure if I have the correct type of question, but I need to know how to solve this problem. It is making me crazy! 5/2x+6 + 46/7x = 2 Please help! Click here to see answer by stanbon(57966)

 Question 370784: Solve by factoring and using the principle of zero products: 3x^2 + 8x = 9 + 2x Click here to see answer by stanbon(57966)

 Question 370765: Open top box. Thomas is going to make an open-top box by cutting equal squares from the four corners of 11 inch by 14 inch sheet of cardboard and folding up the sides. If the area of the base is to be 80 square inches, then what size square should be cut from each corner? Click here to see answer by scott8148(6628)

 Question 370847: I need to factor the following problem: 6x^2 - 13x + 6 It is not making sense to me at all. 6x(x-____+ 1) ??? Is this the start? Click here to see answer by ewatrrr(10682)

 Question 370862: The difference of the reciprocals of two consecutive integers is 1/72. Find the integers. Click here to see answer by ankor@dixie-net.com(15746)

 Question 371043: A circular pool is surrounded by a brick walkway 3 m wide. Find the radius of the pool if the area of the walkway is 198 m^2. Click here to see answer by mananth(12270)

 Question 371054: Hello. I am having trouble with solving inequalites and graphing them and putting them into set builder and interval notation. 2(x+4)<5x+3(x+2). So far i have gotten 2x+8<8x+6. Thank you for the help. Click here to see answer by mananth(12270)

 Question 371137: 8- x divied by 2= (6x+1) DIVIDED BY 5 Click here to see answer by stanbon(57966)

 Question 371125: simplify assume that all variablesrepresent non negative real numbers ^X8y5 square root x to the eighth and y to the fifth Click here to see answer by nyc_function(2733)