Posted by Shreya on Saturday, January 7, 2012 at 12:51pm.
30/x^225 = 3/x52/x+5
i be left with
30 = 3x^2752x^2+50
i not sure what to do? i use the quadratic formula?

mathcalculus  Steve, Saturday, January 7, 2012 at 3:38pm
First, you have to simplify properly:
30/(x^225) = 3/(x5)  2/(x+5)
30 = 3(x+5)  2(x5)
You were ok multiplying through by x^2  25 but you then discarded the denominators on the right, which was incorrect.
3(x^225)/(x5) = 3(x+5)
Anyway, now we are just left with
30 = 3(x+5)  2(x5)
which I'm sure you can solve. Just make sure your answer is not 5 or 5, because the original equation is undefined there. The fraction 3/(x5) is not defined when x=5.

mathcalculus  Shreya, Saturday, January 7, 2012 at 5:37pm
thanks Steve but i think im still messing up. i got 30 = x+30
and if i subtract 30 from each side then i only left with x that be no solution. i think i not doing something right.
Answer This Question
Related Questions
 mathcalculus  30/x^225 = 3/x52/x+5 i be left with 30 = 3x^2752x^2+50 i ...
 Math  Use the quadratic formula to solve each of the following quadratic ...
 math,algebra  can someone help me out factor out this 0=16t^2122t+180 i have ...
 math  (4.35E2  x)(7.56E2 x ) ============================ (0.324 + 2x)2 ...
 mathcalculus  solve equation x^22x6 using quadratic formula. i not get how...
 math help how do i do this  Decide which part of the quadratic formula tells ...
 math help plsss plsss  Decide which part of the quadratic formula tells you ...
 Precalculus need help!!  Quadratic Formula 1.) x+6/x=7 2.) 4x/x+4 + 3/x1 = ...
 Algebra  For this equation x^(2) + x + 2 which you can't factor but then you ...
 College Math II  Solve by using the quadratic formula. x^2 + 6x + 6 = 0 I am ...
More Related Questions