SOLUTION: Need help solving this. (3/m+3)-(5/m^2+ 3m)= 1/m Says answers are 3 and 7, but I don't know how those answers were found.

Algebra ->  Expressions-with-variables -> SOLUTION: Need help solving this. (3/m+3)-(5/m^2+ 3m)= 1/m Says answers are 3 and 7, but I don't know how those answers were found.      Log On


   

Question 1021113: Need help solving this.
(3/m+3)-(5/m^2+ 3m)= 1/m
Says answers are 3 and 7, but I don't know how those answers were found.
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
(3/m+3)-(5/m^2+ 3m)= 1/m

%283%2Fm%2B3%29-%285%2Fm%5E2%2B+3m%29=+1%2Fm
Common denominator is m%5E2.

3%2Fm%2B3-5%2Fm%5E2-3m=1%2Fm
3%2Fm-5%2Fm%5E2-3m-1%2Fm=0
2%2Fm-5%2Fm%5E2-3m=0
m%5E2%282%2Fm-5%2Fm%5E2-3m%29=m%5E2%2A0
2m-5-3m%5E3=0
-3m%5E3%2B2m-5=0
3m%5E3-2m%2B5=0

Refer to Rational Roots Theorem. You can expect NONE of the roots to be 3 or 7. Check using a graphing tool.

Answer by MathTherapy(10557) About Me  (Show Source):
You can put this solution on YOUR website!

Need help solving this.
(3/m+3)-(5/m^2+ 3m)= 1/m
Says answers are 3 and 7, but I don't know how those answers were found.
You can start to determine how those answers were arrived at, by 1st presenting the correct equation.

If it's 3%2F%28m+%2B+3%29+-+5%2F%28m%5E2+%2B+3m%29+=+1%2Fm, then m= 4



Use PARENTHESES correctly so the correct equation can be solved, and you can receive the help you need.