Algebra

Sorry, this is making me crazy. Thank you for pointing out my error.
w-4/w-9 – w+1/w+9 + w-99/w^2 – 81 =

  1. 👍
  2. 👎
  3. 👁
  1. (w-4)/(w-9) – (w+1)/(w+9)
    + (w-99)/(w^2 – 81)
    = [(w-4)(w+9)-(w+1)(w-9)+(w-99)]/[(w-9)(w+9)]
    = [w^2+5w -36 -w^2 +8w +9 +w -99]/[(w-9)(w+9)]

    = [14w -72]/[(w-9)(w+9)]
    = 2(7w -36)/[(w-9)(w+9)]
    I don't see any further simplifications

    1. 👍
    2. 👎
  2. = [w^2+5w -36 -w^2 +8w +9 +w -99]/[(w-9)(w+9)]

    = [14w -126]/[(w-9)(w+9)]
    = 14(w-9)/[(w-9)(w+9)]
    = 14/(w+9)

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. chemistry, physics

    What is the most important source of error in the calorimeter experiment? I know few, but I don't know what is the most important source of error. Stirring error the calorimeter is not properly insulated Calculation error

  2. geometry

    In the middle of the page, draw an equilateral triangle with 2 inch sides and the bottom parallel to the bottom of the page. 2. From the center of the right side, draw two parallel lines an inch apart and an inch long. 3. Draw a

  3. Statistics

    If the critical z value for a hypothesis test equals 2.45, what value of the test statistic would provide the least chance of making a Type I error? 3.74 10,000 2.46 4.56

  4. english

    Choose the word needing an apostrophe or an apostrophe and an s. If the sentences is correct, choose no error. 1. Why havent you dotted your j’s? haven’t **** j’s’ no error 2. Ounce for ounce, humans aren’t as strong as

  1. Physics- Magnetic Field inside of coil

    Current flows through the wire coil in the direction shown by the arrows. What is the direction of the magnetic field inside the coil? (Image shows arrow pointing up into the right side of the coil and pointing down at the left

  2. College physics

    According to Newton's Third Law, for every action there is an equal an opposite reaction. If the current on the wire is such so that the magnetic force on the wire points upward, what must be true? 1. There is no force on the

  3. Physics

    Mark's physics book is on the desk. Mark pushes horizontally (from the side) on the book, but the book does not move. Which force diagram represents the force on the physics book? You may neglect air resistance. a) A box with two

  4. Physics

    A 6.2 kg model rocket is traveling horizontally and due south with a speed of 20.3 m/s when it explodes into two pieces. The velocity of one piece, with a mass of 1.6 kg, is v1 = (-12 m/s)i + (30 m/s)j + (15 m/s)k, with i pointing

  1. Math checking answers (Calculus Differentials)

    The radius of a spherical balloon is measured as 8 inches, with a possible error of 0.02inch. a) Use differentials to approximate the possible propagated error in computing the volume of the sphere. b) Use differentials to

  2. Math

    which of the following is the correct way to name the entire figure shown? a.arrow pointing left and right PQ b.arrow pointing right PQ c.arrow pointing right QP

  3. algebra 1 function question

    given functions f(x) = 3x-5 and g(x) = 1/3 - 4/3x correct the error g(-3) = 1/3 - 4/3(3) = 1/3-4 = - 3 2/3 error i believe is 3 should be -3 so g(-3) = 1/3 - 4/3(-3) 1/3- (4/3 times -3/1) = 1/3 -( -12/3)= 1/3 +12/3 = 13/4 = 4 1/3

  4. science help pls pls

    The diagram below shows the movement of energy in the water cycle. Diagram showing the movement of energy in the water cycle. There are three boxes and six arrows that appear in the following order: box labeled 'Atmosphere,' one

You can view more similar questions or ask a new question.