Maths

simplify and express as a single fraction in its simplest form: (a) 4/a^2 -2a-3 + a/a-3 + a/a+1

  1. 👍 0
  2. 👎 0
  3. 👁 100
asked by Debby
  1. I bet you mean:
    4/(a^2 -2a-3) + a/(a-3) + a/(a+1)

    = 4/( (a-3)(a+1) + a/(a-3) + a/(a+1)
    = ( 4 + a(a+1) + a(a-3) )/( (a-3)(a+1) )
    = (2a^2 - 2a + 4)/( (a-3)(a+1) )
    or
    = 2(a^2 - a + 2)/( a^2 - 2a - 3)

    1. 👍 0
    2. 👎 0
    posted by Reiny

Respond to this Question

First Name

Your Response

Similar Questions

  1. math

    5/x-2 - 4/x-3 express as a single fraction in its simplest form. I had done the question like this: = 5/x-2 (x-2)(x-3) -4/x-3 (x-2)(x-3) = 5x-15-4x+8 = x-7 but how in fraction?

    asked by humza on November 19, 2016
  2. algebra 2

    Would some one look at these problems and see if I got them right Thanks Just let me if they are wrong so I can go back over them 1.Write in simplest form 48/56 A. 6/7 2.Multiply 8x^3/5 *10/x^3 A. 16/x^4 3.Divide 4/x^7 / 12/x^3 A.

    asked by CINDY on June 1, 2007
  3. algebra2/trig

    the length of a rectangle is 2x+4/(x^2-9) and its width is 3/(x-3). express the perimeter of the rectangle as a single fraction in simplest form.

    asked by jackie on February 26, 2011
  4. math

    Simplify the rational expression in the form A/B. X^-2+X^-4. Express the final result in a single fraction using positive exponents only.

    asked by aly on January 19, 2013
  5. Math help, anyone?

    Solve the proportion. Where necessary, round to the nearest hundredth. Plz help i really need 2 get this in!! 11. 9/10 = x/10 9 *** 90 10 100 12. x/4 = 6/7 168 0.21 28 3.43 13.Write the ratio as a fraction in simplest form. 22:36

    asked by Anna on November 26, 2013
  6. Maths

    Write this as a single fraction in its simplest possible form. x/yz . y^2x/z . z^2/y please note that the dot "." is equilvalent to a multiplication sign. Remember it needs to be in a single fraction. And can you please tell me

    asked by Anonymous on September 14, 2015
  7. math

    what is 84 over 100 in simplest form? If i had a calculater i could help you but i can't do it on paper hit me up this is shawn and help me with my problem I don't know what you call simplest form? 84/100 could be written as 0.84.

    asked by daniel on January 31, 2007
  8. Please Help Me Math

    Find the sum and express in simplest form. Show all work: x^2 2x-15 ----- *------ x^2-9 x^2-9 *I don't get this at alll.Plz help me. I assume you are trying to add, since the problem says "find the sum" and express in simplest

    asked by Margie on February 24, 2007
  9. math

    write as a single fraction the simplest form: 3/x + 4/x+1

    asked by sandra on April 7, 2008
  10. math,help

    I also need help with this one: Add. Express answer in simplest form. ((8)/(s))+ ((8)/(s^2)) (8s + 8)/s^2 = 8(s+1)/s^2 That isn't much simpler than the original form, but sometimes they want single denominators. wouldn't it be :

    asked by jasmine20 on April 19, 2007

More Similar Questions