# 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 156267: Solve by completing the square: x^2 + 2x - 24 = 0 Click here to see answer by oscargut(900)

 Question 156370: Use a product formula to compute and simplify Click here to see answer by jim_thompson5910(28717)

 Question 156261: Solve the polynomial inequality and graph the solution set on a number line. Express the solution set in interval notation. 5x^2-3x is greater than or equal to 8 Click here to see answer by stanbon(57984)

 Question 156401: Express the following rational expressions in lowest terms: y^2-y-12 _________ y^2-9 3x^2-6x-72 __________ 2x^2-8x-64 Click here to see answer by orca(409)

 Question 156413: given a piece of rectangular cardboard that measures 15 cm wide and 29 cm long. What is the measure of a side (X) of a square to be cut from each corner in order to make the largest volume open top box. Write the polynomial that represents volume. Click here to see answer by ankor@dixie-net.com(15747)

 Question 156447: Multiply the follwing and simplify by adding like monomials into a single polynomial. (2x-1)*(x+3)*(3x+2) Click here to see answer by jim_thompson5910(28717)

 Question 156415: A student was given the following problem: (9x^2 divided by 16 over 9y^2-24y+16) divided by (6y+8) He states his answer to the problem as 2(3y+4). Is he correct? If not, explain why. What would you suggest he do to solve the problem? Click here to see answer by stanbon(57984)

 Question 156520: Solve. Not sure how to write square root, (square root 3x+24) = x+2 I know a sqiare root is the opposite of exponent 2, not sure how to work this. Click here to see answer by stanbon(57984)

 Question 156567: 5.3.1.1. How do I solve this using factoring? (x - 2)(2x - 5) = 0 thank you. Click here to see answer by nabla(475)

 Question 156566: 10. Using FACTORING, how do I complete this exercise? 2x^2 + 40x + 200 Thank you for your help. Click here to see answer by nabla(475)

 Question 156568: 5.3.1.2. How do I solve this (below) using factoring? x^2 + 6x - 27 = 0 I appreciate your help so much. Thank you. Click here to see answer by nabla(475)
 Question 156568: 5.3.1.2. How do I solve this (below) using factoring? x^2 + 6x - 27 = 0 I appreciate your help so much. Thank you. Click here to see answer by Edwin McCravy(8999)

 Question 156565: 9. Using Factoring, how do I complete this exercise? 25x^2 + 20x + 4 thank you! Click here to see answer by nabla(475)

 Question 156553: How do I start to multiply this rational expression z^2 - 10z+21/z^2 - 13 + 36 divided by z^2 -11z + 24/z^2 - 9z + 14 Click here to see answer by checkley77(12569)

 Question 156518: Subtract then simplify (2 square root 18) - (4 square root 2) Any help please? Click here to see answer by checkley77(12569)

 Question 156523: Multiply 3 square root y^10 * 3 square root 81y^11 Confused! Help! Click here to see answer by checkley77(12569)

 Question 156593: Find all numbers which the rationnal expresson is undefined. p^3-4p divided by p^2-49. i started to factor the top p(p^2-4)= (p-2)(p+2) then the bottom (p-7)(p+7). I think im factoring and not answering the question. So many rules and formulas im getting mixed up. Hel Click here to see answer by jim_thompson5910(28717)
 Question 156593: Find all numbers which the rationnal expresson is undefined. p^3-4p divided by p^2-49. i started to factor the top p(p^2-4)= (p-2)(p+2) then the bottom (p-7)(p+7). I think im factoring and not answering the question. So many rules and formulas im getting mixed up. Hel Click here to see answer by Earlsdon(6294)

 Question 156596: find the GCF for the groups of terms. -30a^3 and 5a^5 Click here to see answer by Alan3354(31538)

 Question 156591: 1.x^4=5x^2 2.x^4+18x^3+8x+144=0 3.x^3+19x^2-7x-133=0 4.x^6-13x^5-7x=-91 I need help solving these. So far I have spent hours on just these problems our teacher doesn't explain things very well. Thanks Lauren Click here to see answer by stanbon(57984)
 Question 156591: 1.x^4=5x^2 2.x^4+18x^3+8x+144=0 3.x^3+19x^2-7x-133=0 4.x^6-13x^5-7x=-91 I need help solving these. So far I have spent hours on just these problems our teacher doesn't explain things very well. Thanks Lauren Click here to see answer by Earlsdon(6294)

 Question 156592: Solve for x 4x(x-2)- 5x(x-1)=2 i started problem x^2-8 etc..and equaled problem to 0. Still seems wrong. Thank you Click here to see answer by stanbon(57984)
 Question 156592: Solve for x 4x(x-2)- 5x(x-1)=2 i started problem x^2-8 etc..and equaled problem to 0. Still seems wrong. Thank you Click here to see answer by scott8148(6628)

 Question 156594: Rationalize the denominator (Square root of U - sqrt of V) divided by (sqrt of U + sqrt of v) Huhhhh... solution: (sqrt u-sqrt v)/(sqrt u+sqrt v) multiply and divide by sqrt u-sqrt v (sqrt u-sqrt v)(sqrt u-sqrt v)/(sqrt u+sqrt v)(sqrt u-sqrt v) (sqrt u-sqrt v)^2/(sqrt u)^2-(sqrt v)^2 (sqrt u-sqrt v)^2/(u-v) Click here to see answer by atique.ah(26)

 Question 156544: y^5 - 3y^3 + 8y^2 / 5y I factored it out as much as I could. Click here to see answer by jim_thompson5910(28717)

 Question 156404: Addition and Subtraction of Rational Expressions Add or subtract the following: y^2 ____ y-4 MINUS 4 ____ y-4 y^3-5y _______ 6y MINUS y^3+y+3 _______ 6y They are supposed to be dide by side like y to the third+y+3 over 6y minus ect...I hope that makes sense.. Thanks! Click here to see answer by checkley77(12569)

 Question 156468: Find all numbers for which x - 1 / x^2-2x -15 is defined Click here to see answer by solver91311(17077)

 Question 156610: simplify: ( -2y^3/5)^3 solving I get 8y^9/5 if I simplify is it -2y^9/5? Click here to see answer by stanbon(57984)

 Question 156469: n^2 - 9/n + 3 * n/3n - 9 Click here to see answer by orca(409)

 Question 156618: n^2 -9/n + 3 * n/3n - 9 I got n - 3 * 1/3 after solving both...now i'm not sure...but the final answer I get is n/3 - 1 but I don't think that's right yes it's right Click here to see answer by Celiesia(1)

 Question 156645: Subtract and simplify (8-v)/(v-2) - (4v-9)/(v-2) i got -v+8/v-2 -4v-9/-v+2... do i go a step further? Is there a step beyond this? Click here to see answer by stanbon(57984)

 Question 156629: The width of a floor is ( x − 6) feet and the length is (x) feet. If the area of the floor is 247 square feet, what is its width? Click here to see answer by Alan3354(31538)