algebra

posted by .

How would u solve
D\d+2 - 2\2-d = d+6\ d^2-4

I got to
D(d-2)(2-d) -2 (d+2)(d-2)=2d-d^2+12-6d

How would you solve? Im confused

  • algebra -

    Did you not notice that the denominator of the right side is (d-2)(d+2) ?
    I will also assume that D is really d, or else you have 2 unknowns.

    so let's rewrite ...
    d/(d+2) - 2/(2-d) = (d+6)/[(d+2)d-2)]
    d/(d+2) + 2/(d-2) = (d+6)/[(d+2)d-2)]

    now multiply each term by (d+2)(d-2)
    d(d-2) + 2(d+2) = d+6
    d^2 - 2d + 2d + 4 = d + 6
    d^2 - d - 2 = 0
    (d-2)(d+1) = 0
    d = 2 or d = -1

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. help!

    A horizontal translation is applied to the graph of y= X^ 3 + 2 so that it will pass through (3, 10) what is the new equation for the graph?
  2. Math- Algebra

    hi wat method would i use and how would i solve this system of equations x^2+xy=3 3x^2+2xy-2y^2=7 In your first equation, solve for y... you should have xy= -x^2+3... divide this by x... so y = x^2+3/x plug what you solved for y into …
  3. Algebra

    FIND THE GCF OF THE PRODUCT (3B+6)(2B-10) SOLVE... X^2=-6X x(x+6)= 0 x = -6 or 0 it would = 0 help me solve this problem.. solve for W: 2L+2W=38 please and thank you!
  4. algebra

    Solve by elimination method. 2r-5s=-33 5r+2s=48 Solve by substitution method. 5x+6y=5 x-9y=40 I always get these two confused... can someone please help me with these two problems?
  5. algebra

    I just need a quick check before I hand in my work if you would...Thanks. 1. I am to use the intercepts to graph the equation x+3y=6 I used the formula y=mx+b using 3 and -6 for x I got these as my ordered pairs to graph (3, 1), (-6, …
  6. Algebra-Did I even begin correctly?

    How would I write log(6)27-2log(6)3 as a single logarithm Would I start by getting rid of the (-2)- I know its the same log6 but what would I do with the 27 and the 3 I'm really confused on this one and I have to solve several similar …
  7. Math

    h(x)= 3x+2/7x-6 find the inverse of h^-1(x) h^-1(x) = ?
  8. Algebra

    32.0=5.5x10^2(1/T)+14.2 Solve for T I am confused about what the first step would be to solving for T. Would I divide 5.5x10^2(1/T) and move it to the left side?
  9. Algebra

    Solve. Show your work. A high school athletic department bought 40 soccer uniforms at a cost of $3,000. After soccer season, they returned some of the uniforms but only received $40 per uniform. What was the difference between what …
  10. Algebra 1 Inequalities (help)

    So, I'm kinda confused, How would I solve 1c < 400, I'm trying to go back, and practice my Inequalities, and I kinda forgot how exactly to solve them.... And I don't want to give any of my actual problems so I just created this …

More Similar Questions