# 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 64063: How in the world do you work this monstor???!!!! -16x^10 + 8x^7 __________________ -4x^4 thank you in advance! Click here to see answer by stanbon(57203)

 Question 64062: How would I go about factoring this? x4 + 2x3 - 3x - 6 Click here to see answer by stanbon(57203)
 Question 64062: How would I go about factoring this? x4 + 2x3 - 3x - 6 Click here to see answer by jai_kos(139)

 Question 64073: Horriable at fractions any help would be greatly appreciated. It is a fraction with the exponet being the 2/3 and 1/3. (25x^3) 2/3 (125xy^2) 1/3 Click here to see answer by stanbon(57203)

 Question 64093: Factor the following trinomial: 16x^2 + 40xy + 25y^2 Click here to see answer by funmath(2925)
 Question 64093: Factor the following trinomial: 16x^2 + 40xy + 25y^2 Click here to see answer by chitra(359)

 Question 64092: Factor the following expression: a^2(b  c)  16b^2(b  c) Click here to see answer by funmath(2925)

 Question 64091: Factor the polynomial by grouping the first two terms and the last two terms: x^3  4x^2 + 2x - 8 Click here to see answer by funmath(2925)

 Question 64090: Use the ac test to determine if the following trinomial can be factored. Find the values of ma and n for the trinomial so that it can be factored: x^2 + 2x - 15 Click here to see answer by funmath(2925)

 Question 64089: Use the ac test to determine if the following trinomial can be factored. Find the values of ma and n for the trinomial so that it can be factored: x^2  3x + 7 Click here to see answer by funmath(2925)

 Question 64088: Rewrite the middle term as the sum of two terms and then factor completely. 12w^2 + 19w + 4 Click here to see answer by funmath(2925)

 Question 64087: Rewrite the middle term as the sum of two terms and then factor completely. 4z^3 - 18z^2  10z Click here to see answer by funmath(2925)

 Question 64086: Factor the following completely: 9x^2 + 12xy + 4y^2 - 25 Click here to see answer by funmath(2925)

 Question 64084: Factor the polynomial by grouping the first two terms and the last two terms: x^3  4x^2 + 2x - 8 Click here to see answer by funmath(2925)

 Question 64083: Factor the following expression: a^2(b  c)  16b^2(b  c) I need help yet again, please!! Click here to see answer by funmath(2925)

 Question 64082: Factor the following trinomial: 16x^2 + 40xy + 25y^2 I am still a little confused by this stuff. I hope that someone can help me understand???? Click here to see answer by funmath(2925)

 Question 64306: Factor completely. 5x^2 + xy + 5x + y Click here to see answer by chitra(359)

 Question 64305: Rewrite the middle term as the sum of two terms and then factor completely. 25x^2 + 35x + 12 Click here to see answer by chitra(359)

 Question 64304: Rewrite the middle term as the sum of two terms and then factor by grouping. x^2 + 10x + 16 Click here to see answer by chitra(359)

 Question 64303: The profit on a watch is given by P = x^2  13x  80, where x is the number of watches sold per day. How many watches were sold on a day when there was a \$50 loss? (Hint: "\$50 loss" means a "negative \$50 profit". Plug in -50 for P and solve for x) Click here to see answer by chitra(359)

 Question 64302: Multiply. (a^2 + 2ab  b^2)(a^2  7ab + b^2) Click here to see answer by chitra(359)

 Question 64336: I have always had a problem dividing can someone help me solve this equation.... thank you very much 3x^4+11x^3-20x^2+7x+35/x+5 I can do sythetic division which would be x+5 divided into the problem above I have done it but the answer I got seems too long.. I got 1300 over x+5 using synthetic division.... can someone help me. Click here to see answer by stanbon(57203)

 Question 64344: So I have another hw question.... synthetic division... 3x^5+4x^2-12x-17 over x-2 I know the setup is -2.. the setup for synthetic that I got was 3...0....0...4...12...17 but when I add them the numbers get huge and I wound up with -135 over x-2 I do not know if this is right and can someone please help me and show me the work if I am wrong so I know what I am doing wrong.... thank you. Click here to see answer by ankor@dixie-net.com(15622)

 Question 64387: I do not understand how to set this problem up. A small city park consists of a rectangular lawn surrounded on all sides by a 330m2(squared) borded of flowers 2.5m wide. Find the area of the lawn if the entire park is 5m longer than it is wide. Click here to see answer by stanbon(57203)

 Question 64391: Randy and Amy left school at the same time and began walking in opposite diretions. Randy walked at a rate of 3.6 km/h and Amy walked at a rate of 4.2 km/h. How far apart were they after 10 minutes. Click here to see answer by checkley71(8403)

 Question 64390: Randy and Amy left school at the same time and began walking in opposite diretions. Randy walked at a rate of 3.6 km/h and Amy walked at a rate of 4.2 km/h. How far apart were they after 10 minutes. Click here to see answer by stanbon(57203)

 Question 64411: If the sides of a square are decreased by 3 cm, the area is decreased by 81 cm^2. What were the dimensions of the original square? Click here to see answer by funmath(2925)

 Question 64409: Factor completely. ax  ay + x^2  xy Click here to see answer by checkley71(8403)