# 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 259120: Write the equation for the parabola with the given vertex and through the given point in vertex form... vertex (3,-2) and point (0,0) Click here to see answer by Fombitz(13828)

 Question 259221: factor completely. if the polynomial is prime please state. I was able to factor but not sure if polynomial is prime 75x^2  3 3(25x^2 -1) Click here to see answer by Fombitz(13828)

 Question 259470: can you please help me with this question? find the area of each polygon. A=1/2b*h b= h= this is what i have tried: A=1/2b*h A=1/2** /2=?-x+12 Click here to see answer by Alan3354(30993)

 Question 259515: i need to factor 8x^9 + 729y^3 and I seem to mess it up everytime I try to do this. Could you give me steps in which to take to solve this probem? Click here to see answer by Earlsdon(6288)

 Question 259641: Factor completely. If the polynomial is prime, state this. 6x2y2 + 19xy + 15 Click here to see answer by scott8148(6628)

 Question 259596: What are the roots for this Polynomial Equation? X*3+6X*2+5X+30? Click here to see answer by unlockmath(1603)

 Question 259646: Solve using the principle of zero products. (21 - 0.8x)(5 - 0.4x) = 0 Click here to see answer by unlockmath(1603)

 Question 259593: Alright the question is (2b-1)^3 I got: 8b-1 but the answer is: 8b^3-12b^2+6b-1 How does that work? P.S ^3 and ^2 mean to the third power and second power. Click here to see answer by Fombitz(13828)
 Question 259593: Alright the question is (2b-1)^3 I got: 8b-1 but the answer is: 8b^3-12b^2+6b-1 How does that work? P.S ^3 and ^2 mean to the third power and second power. Click here to see answer by Theo(3472)

 Question 259762: Reduce to lowest terms. -2b^2 -6b -4/b^2 -1 Click here to see answer by CharlesG2(828)

 Question 259808: This one has me stumped. I appreciate any help I can get. 225w^2 + 810wp + 729p^2 Thanks, Patrice Click here to see answer by Fombitz(13828)

 Question 259796: 1. In this problem, we analyze the profit found for sales of decorative tiles. A demand equation (sometimes called a demand curve) shows how much money people would pay for a product depending on how much of that product is available on the open market. Often, the demand equation is found empirically (through experiment, or market research). a. Suppose a market research company finds that at a price of p = \$20, they would sell x = 42 tiles each month. If they lower the price to p = \$10, then more people would purchase the tile, and they can expect to sell x = 52 tiles in a months time. Find the equation of the line for the demand equation. Write your answer in the form p = mx + b. Hint: Write an equation using two points in the form (x,p). A companys revenue is the amount of money that comes in from sales, before business costs are subtracted. For a single product, you can find the revenue by multiplying the quantity of the product sold, x, by the demand equation, p. b. Substitute the result you found from part a. into the equation R = xp to find the revenue equation. Provide your answer in simplified form. Click here to see answer by gaddiri(1)

 Question 259838: what is -7x^5+15x^4-7x^2 divided by x^3-3x^2+1 i am having trouble dividing this polynomial .... thank you Click here to see answer by jim_thompson5910(28598)

 Question 259848: 17/11=u/6 Can someone help me solve this and round it to the nearest tenth??? Thank you!!! Click here to see answer by drk(1908)
 Question 259848: 17/11=u/6 Can someone help me solve this and round it to the nearest tenth??? Thank you!!! Click here to see answer by scott8148(6628)

 Question 259855: John runs 4 miles in 30 minutes. At the same rate, how many miles would he run in 18 minutes? Can someone help me solve ths? Click here to see answer by scott8148(6628)

 Question 259862: three times a number minus the sum of the number and seven Click here to see answer by ankor@dixie-net.com(15664)

 Question 260035: how do i simplify 9y-18 over 2-y by simplifying factors of one? Click here to see answer by checkley77(12569)

 Question 260122: The instructions say to Factor and Simplify and we haven't gone over anything this complicated in class.. I'm totally LOST! (6x-5)^3 (8) (2x+1)^7 (2) + (2x+1)^8 (3) (6x-5)^2 (6) I would REALLY appreciate somebody's help on this one. Click here to see answer by stanbon(57415)

 Question 260239: Help with polynomials problem: (4m - 2) + (2m + 4) - (9m - 1) (-5m -6) + (8m -3) - (-5m + 3) (6y - 2) - (8y - 3) - (9y -2) (-5y -1) - (8y - 4) - (y + 3) Click here to see answer by Alan3354(30993)
 Question 260239: Help with polynomials problem: (4m - 2) + (2m + 4) - (9m - 1) (-5m -6) + (8m -3) - (-5m + 3) (6y - 2) - (8y - 3) - (9y -2) (-5y -1) - (8y - 4) - (y + 3) Click here to see answer by drk(1908)