algebra

posted by .

Perform the indicated operations and simplify.
y-4/y-9 - y+1/y+9 + y-99/y^2-81

  • algebra -

    common denominator: (y+9)*(y-9)
    I think this is what you meant.
    (y-4)(y+9) -(y+1)(y-9) -(y-9) all that over the denominator.

    y^2+5y-36 -y^2+8y+9 -y+9 over the denominator.

    12y -27 over the denominator

    3(4y-9) over the denominator.

  • algebra -

    I have made a guess and put on the minimum parentheses for the problem to make sense. Do not forget to enclose numerators and denominators with parentheses when transcribing expressions from a book or other sources.

    (y-4)/(y-9) - (y+1)/(y+9) + (y-99)/(y^2-81)
    using (y-9)(y+9)=y²-81
    =(y-4)/(y-9) - (y+1)/(y+9) + (y-99)/((y+9)(y-9))
    =((y-4)(y+9)-(y+1)(y-9)+(y-99))/((y+9)(y-9))
    =(y²+5y-36 - (y²-8y-9) + (y-99))/((y+9)(y-9))
    =(14y-126)/((y+9)(y-9))
    =14(y-9)/((y+9)(y-9))
    =14/(y+9)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Algebra 1

    PERFORM THE INDICATED OPERATIONS AND SIMPLIFY. x-8/x-9-x+1/x+9+x-27/x^2-81=x^3-81x^2-7x-27/x^2 Can you check this equation for me.
  2. math- please help!

    Please help with these 5 problems! I have the solutions but I don't understand how to get them! 1. Perform the indicated operations and simplify: [(2/x)-1]/(x^2 -4) 2. Subtract and simplify: [12/(x^2 -4)] - [(3-x)/(x^2 + 2x)] 3. Perform …
  3. algebra

    perform the indicated operations and if possibly simplify if a quotient is undefined state this -5/9+2/3
  4. Algebra

    Please perform the indicated operations and simplify (3x-5)^2-(2x+1)(x-4)
  5. algebra

    perform the indicated operations and,if possibly,simplify,if a quotient is undefined,state this -5/9+2/3 is this right-7/27
  6. algebra

    perform the indicated operations and simplify x-1/x-9-x+1/x+9+x-153/x^2-81
  7. Math

    perform the indicated operations and simplify x-5/x-7-x-1/x+7+x-35/x^2-49
  8. Math

    Perform the indicated operations and simplify: i^-31
  9. math 117

    perform the indicated operations and simplify z-4/z-6 - z+1/z+6 + z-30/z^2-36
  10. college algebra

    1. divide and simplify x^2+x-56/x^1-1 / x-7/2x+2 2. find the product in simplest from for x^2+x-6/2x^2-x-3 * x^7-2x^6+4x^5/x^4+8x 3. perform the indicated operations and simplify: 2/3x +4/3x^2 y^4 -6/2x^4 y^5 4. perform the indicated …

More Similar Questions