Saturday

February 28, 2015

February 28, 2015

Posted by **michelle** on Sunday, March 21, 2010 at 8:43pm.

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 -
**Reiny**, Sunday, March 21, 2010 at 8:51pmDid 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

**Answer this Question**

**Related Questions**

Math - h(x)= 3x+2/7x-6 find the inverse of h^-1(x) h^-1(x) = ? Would I solve it ...

algebra - I just need a quick check before I hand in my work if you would......

Math- Algebra - hi wat method would i use and how would i solve this system of ...

help! - A horizontal translation is applied to the graph of y= X^ 3 + 2 so that ...

algebra - Solve by elimination method. 2r-5s=-33 5r+2s=48 Solve by substitution ...

Algebra-Did I even begin correctly? - How would I write log(6)27-2log(6)3 as a ...

Algebra - 32.0=5.5x10^2(1/T)+14.2 Solve for T I am confused about what the first...

Algebra - FIND THE GCF OF THE PRODUCT (3B+6)(2B-10) SOLVE... X^2=-6X x(x+6)= 0 x...

Math (Algebra) - Could I have someone check my work please? If I did something ...

algebra - im trying to solve a literal equation, then solve the specific ...