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

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

 Question 45240: This one is confusing me because of the exponents. Can someone help me? Factor. 8m4n  16mn4 Below are my choices: A) 8m4n(1  2n3) B) 8m4n4(m  2n) C) 8mn(m3  2n3) D) 8m4n(1  16mn4) Click here to see answer by rapaljer(4667)

 Question 45262: I am having a hard time with this, can someone help me please? Rewrite the middle term as the sum of two terms and then factor completely. 15x2  21x + 6 Click here to see answer by stanbon(57332)

 Question 45276: Fungicides account for 1/10 of the pesticides used in the united states. Insecticides account for 1/4 of all the pesticides used in the united states. The ratio of fungicides to insecticides used in the united states can be written 1/10 / 1/4. Please write this ratio in simplist form. Click here to see answer by tutmath(14)

 Question 45357: Factor out the variable that is raised to the smaller exponent. Click here to see answer by Earlsdon(6287)

 Question 45279: write each expression in simplest from. 4x-28 / 5x-35 Click here to see answer by checkley71(8403)

 Question 45260: I can not figure this problem out, what am I not doing right? Rewrite the middle term as the sum of two terms and then factor by grouping. x2  2x  63 Click here to see answer by rapaljer(4667)

 Question 44811: Given that (3x-a)(x-2)(x-7)=3x^3-32x^2+81x-70, determine the value of a. Thanks! Click here to see answer by rapaljer(4667)

 Question 45399: WHAT IS THE BASIC RULE TO WRITE THE POLYNOMIALS IN ASCENDING AND DECENDING ORDER. ONLY EXPONENTS OF A PARTICULAR VARIABLE IS TO BE CONSIDERED OR SIGNS(NEGATIVE VALUES) ALSO TO BE TAKEN INTO CONSIDERATION? Click here to see answer by mathgenius(8)

 Question 45239: I am not sure of the formula for this? Can someone help me? Factor completely. 6x2 + 7x + 2 Below are the choices to choose from: A( (3x + 1)(2x + 2) C) (3x  2)(2x  1) B) (3x + 2)(2x + 1) D) (6x + 2)(x + 1) Click here to see answer by mathgenius(8)

 Question 45453: (-3ab)2 (-2ab)3 =(-3 to 2nd a2 b2)(-2 to 3rd a3 b3) =9*8 a2+3 b2+3 =-72 a5 b5 wasn't quite sure how to type out line 2 but I'm tyring to figure out how to determine whether or not an answer is + or - Click here to see answer by tutorcecilia(2152)

 Question 45462: (a-3)(a2 -3a + 4) is the problem = a3 - 6a2 + 13a - 12 is the solution and I don't have a clue as to how the 13a plugs including the 12 Click here to see answer by Nate(3500)

 Question 45402: Find the perimeter of a rectangle length is x/2x-5 and height is 8/2x-5 Click here to see answer by Nate(3500)

 Question 45476: (a -9b)(2a + 7b) 2a2 - 11ab - 63b2 not sure if this has been solved correctly and if I missed a step Click here to see answer by stanbon(57332)

 Question 45304: I am not understanding the vertical and horizontal asympote of the rational function. Can someone please help me? Find the vertical asympote of the rational function f(x)= 3x-12/4x-2 Find the horizontal asympote of the rational function f(x)= 8x-12/4x-2 Any help and explanation would be greatly apprecaited. Thank you Click here to see answer by jake_6233(74)

 Question 45522: find (4n^3)^2 if 2n - 3 = 4n - 7 not quite sure how to even begin solving this one Click here to see answer by stanbon(57332)

 Question 45516: (a + b)^2 - (a - b)^2 = ab^2 + ab^2 = 2ab + 2ab = 4ab would you say this equation is solved correctly? I'm concerned that I might have skipped a step. Click here to see answer by stanbon(57332)

 Question 45514: (3a - 5)^2 =(3a)^2 + 5(3a)(-5)+ (-5)^2 =9^2 - 30a + 25 where in this equation does the 30a come from? Click here to see answer by adamchapman(301)

 Question 45537: 2m^6 n^2/5m^9 n^10 = 2/5m^3 n^8 I understand subtracting the exponents but how did the 2 wind up by itself? Click here to see answer by Nate(3500)

 Question 45592: divide: (a^2 + 5a + 10) divided by (a + 2) Click here to see answer by Nate(3500)

 Question 45639: Factor using trial and error method. 3xē - 17x + 10 Please show all work and solution. Thanks Click here to see answer by checkley71(8403)

 Question 45643: Solve the equation, show all work and answer. 2hē - h  3 = 0 Thanks Click here to see answer by checkley71(8403)

 Question 45645: Solve each equation with repeated factor or three solutions. Show all work and solution. mģ + 2mē -3m = 0 Thanks. Click here to see answer by Nate(3500)

 Question 45655: Solve each equation with repeated factor or three solutions. Please show all work and all solutions. mģ + 2mē -3m = 0 Click here to see answer by Nate(3500)

 Question 45676: (5x-1)^2 =(5x-1)(5x-1) =25x^2 the answer is 25x^2-10x+1 but I don't see the order of operation Click here to see answer by tutorcecilia(2152)