# 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 489023: Help me please? I don't get this at all.... Essay: Show all work. A school designer wants to create a whiteboard with the optimal dimensions to enhance learning. It is determined that if one side of the whiteboard is x + y inches, the other side should be x^2-3xy+7y^2 inches. Write an algebraic expression for the area of such a whiteboard, simplify it, and include correct units with your solution. Click here to see answer by Theo(3472)

 Question 489027: I really need help on this one please..I don't understand this at all.... Essay: Show all work. The area of a rectangular swimming pool is given by 3x^2+11x+6 ft^2 One side length of the pool is given by 3x + 2 feet. What is an algebraic expression for the other side length of the pool? Simplify this, and include correct units as part of your answer. Click here to see answer by chessace(471)

 Question 489074: Im so confuse i dont understand how to answer this set of questions. Please show cancelling and factoring? 1. (x+2)^2/x^2+3x+2 2. 1/4 × 24x thank you so much Click here to see answer by chessace(471)

 Question 489096: Im so confuse i dont understand what they want me to do it cays show canceling and factoring? 1. 18/24 2. 7rs^2/21r^2s 3. 3y-3/y^2-1 thank you Click here to see answer by chessace(471)

 Question 489155: 1. a.What are the means in 4/11 = 8/22? b. What are the extremes? thank you Click here to see answer by chessace(471)

 Question 489173: I am trying to find the greatest common factors for this equation 3x^(5)+3x^(4)-18x^(3)+18x^(2). Click here to see answer by rfer(12678)
 Question 489173: I am trying to find the greatest common factors for this equation 3x^(5)+3x^(4)-18x^(3)+18x^(2). Click here to see answer by Edwin McCravy(8921)

 Question 489194: i am having trouble with which properties to use first in equations like: 21-(2+4x)=23-6x I would normal add (2+4x) to each side leaving 21=23-6x+(2+4x) but then i get lost there? im not sure if i distribute the -6x with the numbers in perenthese or if i add 23 and 2 and add 6x with 4x?? Click here to see answer by chessace(471)

 Question 489484: Factor. 12-8t+t^2 I was trying to figure this one out and am confused I had changed it to t^2-8+12 and it does not make sense to me. Is this not factorable? Thanks in advance - I just want to double check this. Click here to see answer by chessace(471)

 Question 489490: Solve. (x+9)(x-16)(x+4) greater than 0. The solution set is________ (use at least one inequality or compound inequality to express your answer. For answers with more than one inequality, separate them by commas. or B. The solution is all real numbers. Or C. there is no solution. Click here to see answer by chessace(471)

 Question 489761: we were asked to find the percent increase on sales from 2002 to 2006. the sales in 2002 are 58,200,000,000 and in 2006 are 90,800,000,000 Click here to see answer by josmiceli(9698)

 Question 490153: how do you factor a problem like v to the 4th power minus 1296 Click here to see answer by Earlsdon(6291)

 Question 490174: " what are the dimensions and centimeters?" The length of a rectangle is 2 centimeters less than its width.What are the dimensions of the rectangle if its area is 168 square centimeters? The length of the rectangle is____ centimeters The width of the rectangle is ____ centimeters Click here to see answer by Jresend18(1)

 Question 490374: Choose the last step in the given solution to the inequality 5x − 14 greater than or equal to 7x + 10. Click here to see answer by stanbon(57424)
 Question 490374: Choose the last step in the given solution to the inequality 5x − 14 greater than or equal to 7x + 10. Click here to see answer by rfer(12678)
 Question 490374: Choose the last step in the given solution to the inequality 5x − 14 greater than or equal to 7x + 10. Click here to see answer by richard1234(5390)

 Question 490377: Which of the following expressions is the square of a sum Click here to see answer by richard1234(5390)

 Question 490677: The horizontal sides of a rectangle are one half the length of the side of a particular square. The vertical sides of the rectangle are 4 centimeters more than three times the side of the square. If the perimeter of the rectangle is twice the perimeter of the square, what are the dimensions of the rectangle? Click here to see answer by John10(245)

 Question 490706: Hey, If you could help me remember how to do this type of problem it would be AWESOME! Form a polynomial degree with real coefficients so that 2+i and -1 are zeros. Thanks! (Answer is x^3-3x^2+x+5; just need to know how to figure this out - thanks! Click here to see answer by John10(245)

 Question 490772: Factor 4x^2 – 14x – 8 There are no numbers whose sum is -14 and can multiple to make 4... I feel like I'm missing something? Click here to see answer by John10(245)
 Question 490772: Factor 4x^2 – 14x – 8 There are no numbers whose sum is -14 and can multiple to make 4... I feel like I'm missing something? Click here to see answer by MathTherapy(1430)

 Question 490776: Factor 4x^2 – 14x – 8 There are no numbers whose sum is -14 and can multiple to make 4... I feel like I'm missing something? How would I factor it out? The answer is supposed to be 2(2x + 1)(x – 4) Click here to see answer by jim_thompson5910(28598)

 Question 490779: AGAIN, I'm getting stuck here! Right when I thought I knew it... Solve 6x^2 + 3x – 12 = 2 – 2x Okay, so I subtracted 2-2x from both sides and end up with 6x^2+5x-14 Now, do I divide by 6? I don't understand how that would work, and there are no factors of 14. I'm looking at my teacher's notes from last year and they aren't helping. Click here to see answer by jim_thompson5910(28598)

 Question 490700: I started factoring x^4-3x^3-21x^2+43x+60, but I got stuck after I synthetically divided by -1 first, now I am x^3-4x^2-17x+60. I divided by 1 and -1 and it's not working. Help! Thank you! Click here to see answer by Edwin McCravy(8921)

 Question 490946: Form a polynomial whose zeros and degree are given Zeros: -3, -2, -1, 1 degree 4 choices: a) x4th + 5x cubed + 5x squared -6x -6 b) x4th + 5x squared -6 c) x4th - 5xcubed + 5x squared + 5x -6 d) x4th + 5x cubed + 5x squared -5x -6 Click here to see answer by Alan3354(30993)

 Question 490956: How to solve the equation for y. 3xy+y=15 Click here to see answer by MathLover1(6649)

 Question 490984: 4xy+3=5z; y Its a literal equation solve for y Click here to see answer by ccs2011(207)

 Question 490985: Simplify and express your answer with positive exponents. Evaluate or simplify the numerical expressions. 11^1/2-11^3 Combine sqrt(90)-sqrt(10) Divide and simplify. Assume that all variables represent positive numbers sqrt(16/36) Simplify by rationalizing the denominator y/sqrt(7)+sqrt(3) Click here to see answer by ccs2011(207)

 Question 491042: I used the solver to simplify this equation but I don't understand the first step. It says turns into , but I don't understand how. Please explain this to me. Click here to see answer by stanbon(57424)

 Question 490975: i need to solve this equation for d. 4(d-3)=2d Click here to see answer by ankor@dixie-net.com(15667)