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

Algebra ->  Algebra  -> Polynomials-and-rational-expressions -> Questions on Algebra: Polynomials, rational expressions and equations answered by real tutors!      Log On

 Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations! Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

 Algebra: Polynomials, rational expressions and equations Solvers Lessons Answers archive Quiz In Depth

 Question 631728: simplify the expression -2(4y^2+3z^3+5)+3(2y^2-5z^3+3) a. -14y^2z^3+6y^2-1 b. -21z^3-2y^2-1 c. 9z^3-14y^2+19 d. 21z^3 +2y^2+1 I think the answer is c. If I am wrong can you show me how its not c, ty Click here to see answer by ewatrrr(10682)

 Question 631769: solve the following equation: 1/2+7/y=2+1/y a. y=-4 b. y=4 c. y=3 d. y=-3 Click here to see answer by ewatrrr(10682)

 Question 631774: simplify -a^2b^-2 / a^-2b^5/a^4b^-2 a. -a^8 b^3 b. -a^4 b^3 c. -a^4 b^-7 d. -a^8 b^-7 Click here to see answer by ewatrrr(10682)

 Question 631736: completely factor the expression y^2+12y+35 a. (y-7)(y-5) b. (y+7)(y-5) c. (y+7)(y+5) d. prime Click here to see answer by Edwin McCravy(8999)

 Question 631833: A rectangle has length 4x –1 and a width 2x + 1, write an algebraic expression for the area of the rectangle . Click here to see answer by ewatrrr(10682)

 Question 631835: If the area of a rectangle is x2 + 5x + 4, find algebraic expressions representing possible lengths and widths of the rectangle. Thank you. Click here to see answer by ewatrrr(10682)

 Question 631841: If the area of another rectangle is x^2 + 5x + 4, find algebraic expressions representing possible lengths and widths of the rectangle. Click here to see answer by ewatrrr(10682)

 Question 631887: 5x^4-20x^2=0 solve the polynomial equation by factoring and then using the zero product principle. Click here to see answer by solver91311(17077)

 Question 631966: i need help finding the solution to the equation below, (x-5)^2=7 Click here to see answer by richwmiller(9144)

 Question 632021: Hmmmm, what could this be??? Find the eight term in the expansion (a + b)14. Thank you for your help! Click here to see answer by nerdybill(7003)

 Question 632019: I hate polynomials!! Could you help? What is the sixth term of (x + y)8? Click here to see answer by nerdybill(7003)

 Question 632097: completely factor the expression 16t^3 - 50t^2 + 36t a. 2t(8t - 25t + 18) b. prime c. 2t(8t + 9)(t + 2) d. 2t(8t - 9)(t - 2) I dont see how it could any of these, when you would subtract the intergers and then the numbers..Im lost Click here to see answer by Alan3354(31518)

 Question 632139: write a quadratic equation in the variable x having the given numbers as solutions. Type the equation in standard from ax²+bx+c=0 -√3,7√3 Click here to see answer by Tatiana_Stebko(1326)

 Question 632295: What are the steps to sovling questions like x to the second power = 49 or x2=49 Click here to see answer by mananth(12270)

 Question 632373: Hi , could someone plese explain how to rearrange the following equation 1/y=x-4/x make x the subject . thank you Click here to see answer by ewatrrr(10682)

 Question 632451: The height of a soccer ball after being kicked is given by the function h(t)=-16t^2+48t. How many seconds after being kicked will the ball hit the ground? Thank you so much. Click here to see answer by Alan3354(31518)

 Question 632766: (2a+4)^(3) I know the answer, I just can't figure out the steps to get the answer!! I am totally more confused than I thought I would be! Click here to see answer by xerb(6)

 Question 632798: I don't understand how to write x^10-1 as a product of two terms? Click here to see answer by mananth(12270)

 Question 633023: Factor(25x^2-4/49) Would you please show the steps that derive the solution below? Microsoft Mathmatics solution is 1/49(35x-2)(35x+2) Click here to see answer by mananth(12270)

 Question 633038: simplify the expression 17c+ (-17c)by (multipy, distribute and/or combine like terms Click here to see answer by solver91311(17077)

 Question 633044: Given the polynomial function f(x), find the rational zeros, then the other zeros (that is, solve the equation f(x) = 0) : f(x) = x^3-4x^2+9x-10 Click here to see answer by lwsshak3(6755)

 Question 633114: Complete the trinomial so it is a perfect square. 25x^2 + ___ + 4 Thanks a bunch! :) Click here to see answer by reviewermath(602)

 Question 633042: 10x^(5)+39x^(4)-24x^(3)-238x^(2)-216x+24=0 find the solution set using rational zero theorem and descarters's rule of signs Click here to see answer by jsmallt9(3296)

 Question 633117: What number should be added to both simplete the square? x^2+x=3des of the given equation to co Click here to see answer by darknez25(6)

 Question 633165: What should be added to both sides of the equation to complete the square? x^2-6x=-4 Click here to see answer by graphmatics(170)

 Question 633269: I am having trouble factoring these problems completely... 9x^4 plus 32x^2 minus 16 And X^3 minus x^2 plus 2x minus 2 Thank you so much! Click here to see answer by ewatrrr(10682)

 Question 633134: Here is my question: [w/{w^2+8w+16}] + [4/{w^2+12w+32}]. I need to add these two polynomial fractions together with variables and simplify. I've tried 2 ways already. I tried the following 2 methods. METHOD 1: [w/{w^2+8w+16}] + [4/{w^2+12w+32}] [w/(w+4)(w+4)]+[4/(w+4)(w+8)] [w(w+8)/(w+4)(w+4)(w+8)]+[4(w+4)/(w+4)(w+8)(w+4)] {(w^2+8w)/(w+4)(w+4)(w+8)} + [(4w+16)/(w+4)(w+4)(w+8)] [{(w^2+12w+16)/((w+4)(w+4)(w+8)}] But I couldn't go any further after I added the two. METHOD 2: Exact same but I took out one of the extra (w+4). Yet at end still had trouble. I hope I submitted this the right way in connection with the carrot symols and the squares. And thank you in advance for your time on this problem. Click here to see answer by jsmallt9(3296)