# 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 387702: Rewrite with positive exponents. Assume that even roots are of non=negative quantities and that all denominators are nonzero. 4xy – 2 – 2 Click here to see answer by Fombitz(13828)

 Question 387688: Express as a single fraction in lowest terms: -5 + 7u + 3y/2u - 5u - 3y/3u Click here to see answer by Fombitz(13828)

 Question 387894: Multiply and simplify: (x^2 - 4x + 3/x^2 + 3x + 2) * (x + 2/4x - 4) Click here to see answer by Fombitz(13828)

 Question 389171: The measure of the second angle of a triangle is 30 degree less than the measure of the first angle. The measure of the third angle is one -third of the measure of the first angle .Find the measure of the three angles of the triangle.( Solution of the equations is not required) Thanks. Click here to see answer by stanbon(57387)

 Question 386685: I need help solving this problem in it lowest term (m^2-1)/((m-1) ) ∙ (2m-2)/(3m+3) This is fraction Click here to see answer by robertb(4012)

 Question 389177: How do I determine the values of a if f(x)=3a square x cube - ax +4 and f(2)=6? Click here to see answer by stanbon(57387)

 Question 389186: Please show me how to Solve the equation x2 + 8x – 2 = 0 using both The quadratic formula and Completing the square. Click here to see answer by haileytucki(390)
 Question 389186: Please show me how to Solve the equation x2 + 8x – 2 = 0 using both The quadratic formula and Completing the square. Click here to see answer by jim_thompson5910(28598)

 Question 389178: How do I solve this following question: The remainders whe ax^4+bx cube - x - 7 is divided by (x-1) and (x+2) are 7 and -35 respectively. Find the values of a and b. ? Click here to see answer by robertb(4012)

 Question 389236: I need help with 20 rational expression questions 3x-8/4x+20 Click here to see answer by Fombitz(13828)

 Question 389309: How do I solve this follow question: Use the function to solve for x when f(x)=1287? Click here to see answer by richard1234(5390)

 Question 389323: ADD OR SUBTRACT. SIMPLIFY, FACTOR, CANCEL AND SHOW STEPS FOR FINDING LOWEST COMMON DENOMINATOR. ASSUME NO DENOMINATOR IS 0. I NEED HELP WITH 4 PROBLEMS PLEASE. A/A^2-4-2/A^2-4 X^2+7X/3+4/9 2X/5Y-3X/4Y (X+5)2/X^2+2X-15+2/4X-12 Click here to see answer by haileytucki(390)

 Question 389361: How do I show a check for the problem: 3/4x - 5=4? any help is greatly appreciated. Click here to see answer by jim_thompson5910(28598)

 Question 389362: I am drawing a blank on how to solve 1/2x=22 plus I need to check it. Click here to see answer by jim_thompson5910(28598)

 Question 389368: How do I solve x^4+ 8x cube + 15x square 2x - 10 = 0? Click here to see answer by jsmallt9(3296)

 Question 389378: a rectangle has a length one foot longer than twice the width. the area of the rectangle is 253 square feet. find the (a) length and (b) width. can you show me how to do this problem? thanks. Click here to see answer by mananth(12270)

 Question 389398: Given f(x) = 2x^3 + ax^2 - 7a^2x - 6a^3, determine whether or not x-a and x+a are factors of f(x). Hence, find, in terms of a, the roots of f(x) = 0. Click here to see answer by CharlesG2(828)

 Question 389501: How do you solve x^4 + 8x^3 + 15x square - 2x - 10 = 0? Click here to see answer by robertb(4012)

 Question 389646: Solveby factoring when first coefficient is a negative number. please take me thru each step: -2x^2 + 13x - 21 they say the answer is 3, 7/2 Click here to see answer by texttutoring(324)

 Question 389645: Solving Quadratic Equations by factoring (when first cioefficient is negative). pls walk me thru each step: -5x^2 + 2x +3 = 0 i know we multiply by -1 to change each sign: 5x^2 -2x -3. then we factor. but I am being told that the factors are (5x + 3) (x - 1) = 0. I do not understand this. Why isn't it -3, & +1??? I just don't understand the answer to be x = - 3/5 or x = 1, Seems it should be the opposite. thank you Click here to see answer by MathLover1(6638)

 Question 389672: Carlos and Robert leave Cabanatuan City at the same time. They are heading to Bulacan. Carlos, driving his sports car, travels 65 kph. Robert, on a motorcycle travels at 55 kph. How long will it be before they are 55 km apart? (need complete solution Thanks!) Click here to see answer by Alan3354(30993)

 Question 389558: How do I simplify 3/ x+1 + x+2/x+1? Click here to see answer by haileytucki(390)

 Question 389687: How do I determine the end behavior of the graph of the function? f(x)=-3x^6+2x^4+4x^3-2 How do I divide (3x^4-3x^3-6x-10)/(x-2) by using long division? How do I divide (4x^4-12x^3-48x-60)/(x-4) by using long division? For the function, use synthetic division and substitution to determine whether the given value is a zero of the function P(x)=3x^4-10x^3-29x^2+16x+20, P(1) How do I use substitution to determine whether x-3 is a factor of 4x^4-9x^3-109x^2+225x+225? Click here to see answer by ewatrrr(10682)

 Question 389717: solve for the variable in each equation below. show work. provide check for answer. if solution is undefined, state that in answer. thxs b/2 - b/5 = 6 .2x + .05x = 2 1-.1y > .2 7s-2/3 - 3s-16/6 = 2 8/x-2 = 4 Click here to see answer by rfer(12670)
 Question 389717: solve for the variable in each equation below. show work. provide check for answer. if solution is undefined, state that in answer. thxs b/2 - b/5 = 6 .2x + .05x = 2 1-.1y > .2 7s-2/3 - 3s-16/6 = 2 8/x-2 = 4 Click here to see answer by ewatrrr(10682)

 Question 389718: hello.please solve for the variable in each equation. show work and provide a check for answers. if solution is undefined state that in answer. thank you for your time! 1-y/1+y =2/3 x-2/x+1 = x+1/x-2 3x/x-2 = 6/x-2 solve the formulas below for the indicated variable. show work. m = f/a, for a E/R + r = I, for R Click here to see answer by ewatrrr(10682)

 Question 389727: word problem. please use a table and the 5 step method to solve this problem. thank you. marcus invested a sum of money at 5%. he invested an amount of money \$250 more than the first amount at 6%. if the annual income from both investments totaled \$59, how much did he invest at each rate. Click here to see answer by ewatrrr(10682)

 Question 389740: please solve for the variable, show work, and provide check. if undefined please state in answer.pleae help!!!thank you all! 7s-2/3 - 3s-16/6 = 2 8/x-2=4 Click here to see answer by rfer(12670)
 Question 389740: please solve for the variable, show work, and provide check. if undefined please state in answer.pleae help!!!thank you all! 7s-2/3 - 3s-16/6 = 2 8/x-2=4 Click here to see answer by MathLover1(6638)

 Question 389739: (x+5)^2/x^2+2x-15 + 2/4x-12 please show factoring, simplify and steps for LCM thank you kindly! Click here to see answer by lwsshak3(6521)

 Question 389745: What would the polynomial with real coefficients whose zeroes are -4, 1-i, and 1 + i be? Click here to see answer by stanbon(57387)
 Question 389745: What would the polynomial with real coefficients whose zeroes are -4, 1-i, and 1 + i be? Click here to see answer by scott8148(6628)