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

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 Question 615589: Factor Each Trinomial (if cannot be factored write prime what is the answer to the following 1.5xcubed-40xsquared+80x 2.5sto the fourth=125s Click here to see answer by stanbon(60778)

 Question 615581: how do i find the imaginary zeros positive zeros and a negative zero in the following equations: 4x^3+4x^2-x-1 2x^3-5x^2+4x-1 3x^3-7x^2+5x-1 Click here to see answer by jsmallt9(3438)

 Question 615662: How can I rewrite thw following equation into vertwx form by completing the square? x^(2)-12x+24 Click here to see answer by jsmallt9(3438)

 Question 615587: Factor each polynomail completely what is the answer to the following 1. 45xcubed+15xsquared 2.zsquared-225 Click here to see answer by jsmallt9(3438)

 Question 615902: How do I find the product of (2x^2-5)(x+3) Click here to see answer by solver91311(18785)

 Question 615772: Could someone help me with this problem. Thanks so much!This problem has really puzzled me. Any help is appreciated!I am not sure what type of problem this is, so that doesn't help me either. Sorry for lack of information. Add (3x^2-5xy+y^2)+(-8x^2-2xy-y^2)+(x^2+xy-8Y^2) Click here to see answer by ankor@dixie-net.com(16527)

 Question 615919: factor....... 3A(squared)-22a+7 next problem... simplify 4m+20 over 4m(squared) - 100 Click here to see answer by jim_thompson5910(29613)

 Question 616008: Factor. Remember to use the largest common factor and to check by multiplying. Factor out a negative factor if the first coefficient is negative. -10t^5+15t^4+9t^3 Click here to see answer by jim_thompson5910(29613)

 Question 615934: A cube has a surface area of 6x^2+120x+600. Find the length of a side. I know that I have to find the greatest common factor. The length of the side is? Click here to see answer by richwmiller(10283)

 Question 616069: how do you work 10r^2+20r-73=7 with completing the square? Click here to see answer by nerdybill(7090)

 Question 616036: Hello I need help adding fractions and equations in math i need to know how to do 3n +5 over 6 - 10 over n = n over 2 Click here to see answer by KMST(2478)

 Question 616024: what is asquared minus 16ysquared when factored completely? Click here to see answer by asuar010(324)

 Question 616166: Factor the polynomial below completely. F(x) = x3 + 2x2 + x + 2 Click here to see answer by stanbon(60778)
 Question 616166: Factor the polynomial below completely. F(x) = x3 + 2x2 + x + 2 Click here to see answer by ewatrrr(11176)

 Question 616106: g(x)= x^4 - 3x^3 +2x^2 + x - 1 what is the domain and range? Click here to see answer by jsmallt9(3438)

 Question 616212: Factor out the greatest common factor from the expression 21x^3+3x^2+12x Click here to see answer by ewatrrr(11176)
 Question 616212: Factor out the greatest common factor from the expression 21x^3+3x^2+12x Click here to see answer by Wizguy jack(4)

 Question 616231: Factor the expression 16x^2-72xy+81y^2 into a product of binomials. Click here to see answer by ewatrrr(11176)

 Question 616072: kindly solve this problem for me: A rubber ball dropped on a hard surface takes a sequence of bounces, each one 1/2 as high as the preceding one. If this ball is dropped from a height of 12 feet, how far will it have traveled when it hits the surface the fifth time? kindly email it to me to earljoseph.borgonia@yahoo.com Click here to see answer by Wizguy jack(4)

 Question 616309: is this simplified? : (C+3)(C+3) over X? Click here to see answer by Wizguy jack(4)

 Question 616404: I need an equation for this table x,-3,-2,-1,0,1,2, 3 y, 1, 3, 5,7,9,11,13 Click here to see answer by Alan3354(34679)

 Question 616525: what are the factors of the expression x^2+x-20? Click here to see answer by ewatrrr(11176)

 Question 616526: a 8 foot rope is tied from the top of a pole to a stake in the ground, as shown in the diagram below. If the rope forms a 57 degree angle with the ground, what is the height of the pole to the nearest tenth of a foot? Click here to see answer by ewatrrr(11176)

 Question 616535: can you show the steps for (a-b)(2a^3-ab+3b^2) Click here to see answer by Edwin McCravy(9719)

 Question 616625: Please help with the equations. Find all of the real zeros of the polynomial function, then use the real zeros to factor f over the real numbers. f(x) = 3x^4 - 6x^3 + 4x^2 - 2x + 1 Click here to see answer by ewatrrr(11176)

 Question 616638: Please help Use the Factor Theorem to determine whether x - c is a factor of f. If it is, write f in factored form, that is, write f in the form f(x) = (x - c)(quotient). f(x) = 8x3 + 31x2 + 23x + 6; c = -3 A) Yes; f(x) = (x + 3)(8x2 + x + 2) B) Yes; f(x) = (x - 3)(8x2 + 7x - 2) C) No D) Yes; f(x) = (x + 3)(8x2 + 7x + 2) Click here to see answer by ewatrrr(11176)