# 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 288907: Given that f(x) is a cubic function with zeros at -6,-2 , and 6, find an equation for f(x) given that f(0)=-5 Click here to see answer by stanbon(57224)

 Question 288804: I have to factor this problem completely....9x^2+4y^2. I want to plug in perhaps a 2 and a 3 but I don't see how I can. I am thankful for any help that you can give me. Click here to see answer by richwmiller(9135)

 Question 288854: What is (5x+6) to the 2nd power using the foil method? Click here to see answer by stanbon(57224)
 Question 288854: What is (5x+6) to the 2nd power using the foil method? Click here to see answer by alegriajoy33(14)

 Question 288984: 16x-8= A) 8x B)8(2x-x) C)8(2x-1) D)8(2x-8) and how Click here to see answer by Deina(147)

 Question 289066: How to solve: (x^4 + 5x^3-x^2-3x-1) / (x-1) step by step Click here to see answer by richwmiller(9135)

 Question 289099: The instruction tell me to factor completely given that the binomial following is the factor of the binomial. Please help i thought i had the hang of it it but guess not!!! x3 + 2x2 - 5x - 6, x + 3 Click here to see answer by stanbon(57224)
 Question 289099: The instruction tell me to factor completely given that the binomial following is the factor of the binomial. Please help i thought i had the hang of it it but guess not!!! x3 + 2x2 - 5x - 6, x + 3 Click here to see answer by CharlesG2(828)
 Question 289099: The instruction tell me to factor completely given that the binomial following is the factor of the binomial. Please help i thought i had the hang of it it but guess not!!! x3 + 2x2 - 5x - 6, x + 3 Click here to see answer by richwmiller(9135)

 Question 289102: Missing ages. Molly’s age is twice Anita’s. If the sum of the squares of their ages is 80, then what are their ages? I started this problem and took 80 divided by two which gave me 40, then this is where i got stuck. Am i doing this right ro do i need to go about it differently? Click here to see answer by stanbon(57224)
 Question 289102: Missing ages. Molly’s age is twice Anita’s. If the sum of the squares of their ages is 80, then what are their ages? I started this problem and took 80 divided by two which gave me 40, then this is where i got stuck. Am i doing this right ro do i need to go about it differently? Click here to see answer by Stitch(352)

 Question 289226: 9(⌊4(x-5)+19⌋- ⌊3(2x-3)+1⌋). I need to simplify this problem. I came up with : 36x -45 +19 - 42 x -54 +20. Could you please help me continue? Thank you. Click here to see answer by unlockmath(1599)

 Question 289411: I am not understanding how to do this problem... Most I am getting however, this one is driving me tired... Please help and thank you!! (x-2)/(x-8)-1/x=(x-7)/x Please show me how to work the problem... to get the correct answers... Blessings & Miracles Alberta... Click here to see answer by stanbon(57224)

 Question 289432: How do you factor out -1 from the polynomial: -x - 2y Thank you! Click here to see answer by jim_thompson5910(28476)

 Question 289441: How do you factor this polynomial: -4abc - 4ac^2 + 2bc + 2c^2 Thank you! Click here to see answer by edjones(7569)

 Question 289523: The world's largest swimming pool is the Orthlieb pool in Casablanca Morocco. the length is 30 meters longer than 6 times the width. If the perimeter of the pool is 1,110 meters, what are the dimensions of the pool? Click here to see answer by Fombitz(13828)

 Question 289506: how to solve rational expression 5/x^2+3x - 4/x^2-x-12 Click here to see answer by richwmiller(9135)

 Question 289566: Express the perimeter of the rectangle as a single rational expression given one side as X divided by X+5 and the other side as X divided by X+6 Click here to see answer by richwmiller(9135)
 Question 289566: Express the perimeter of the rectangle as a single rational expression given one side as X divided by X+5 and the other side as X divided by X+6 Click here to see answer by unlockmath(1599)

 Question 289569: Your local electronices store is having an end of the year sale. The price on a large screen tv had been reduced by 30%. Now the sale price is reduced by another 30%. If x is the tv's original price the sale price can be represented by (x-0.3x)-0.3(x-0.3x) a. Factor out (x-0.3x) from each term. Then simplify the resulting expression b. Use the simplified expression from part a to answer these questions. With a 30% reduction followed by a 30% reduction is the tv selling at 40% of the original price? If not a what percentage of the original price is it selling? I cant for the life of me figure these 2 problems out.. HELP!!!! Click here to see answer by jim_thompson5910(28476)

 Question 289662: How do you divide this polynomial? x+5 by 2x2+13x+15 Click here to see answer by jim_thompson5910(28476)

 Question 289794: Solve (no need for sentence/units):         3.4x^2 – 8.7x – 17.1 = 0 Click here to see answer by j1mmy94(14)

 Question 289847: Use synthetic division to write f(x)= 3x^3+17x^2-98x-72 in completely factored form Click here to see answer by richwmiller(9135)

 Question 289846: Use synthetic division and the remainder theorem to evaluate, find the exact value- no decimals f(-1/3) for f(x)= -6x^3+5x^2-4x+2 Click here to see answer by richwmiller(9135)

 Question 289817: what are the steps in solving the problem: 36x^3-64x Click here to see answer by richwmiller(9135)