SOLUTION: -2/x^2-4 + x-1/x^2-2x 1: What is the problem? What do you need to find or do? What will your final answer look like? 2: What have they told you? What does it mean? What more do y

Algebra ->  Rational-functions -> SOLUTION: -2/x^2-4 + x-1/x^2-2x 1: What is the problem? What do you need to find or do? What will your final answer look like? 2: What have they told you? What does it mean? What more do y      Log On


   

Question 1153848: -2/x^2-4 + x-1/x^2-2x
1: What is the problem? What do you need to find or do? What will your final answer look like?
2: What have they told you? What does it mean? What more do you know or can you figure out? What connections can you make?
3: Solve by showing steps towards completing the problem, including writing/using equations.
4: final answer
Found 3 solutions by MathLover1, greenestamps, MathTherapy:
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

-2%2F%28x%5E2-4%29+%2B+%28x-1%29%2F%28x%5E2-2x%29
1: What is the problem? What do you need to find or do ? What will your final answer look like?
we have to find the sum of two rational expressions
first, we need to factor denominators and , then find common denominator
final answer will look like one rational expression
2: What have they told you? What does it mean? What more do you know or can you figure out? What connections can you make?
We can add rational expressions in much the same way as we add numerical fractions.
To add rational expressions with unlike denominators, first find the LCM of the denominator, write each expression using the LCD, add the numerators, and simplify as needed.
3: Solve by showing steps towards completing the problem, including writing/using equations.
-2%2F%28x%5E2-4%29+%2B+%28x-1%29%2F%28x%5E2-2x%29

factor denominator:
%28x%5E2-4%29+=%28x-2%29%28x%2B2%29
and
%28x%5E2-2x%29=x%28x-2%29

=> common denominator is x%28x-2%29%28x%2B2%29



%28-2x+%2B+x%5E2+%2B+x+-+2%29%2F%28x%28x-2%29%28x%2B2%29%29

%28++x%5E2+-x+-+2%29%2F%28x%28x-2%29%28x%2B2%29%29

%28++%28x+%2B+1%29+%28x+-+2%29%29%2F%28x%28x-2%29%28x%2B2%29%29........simplify

%28++%28x+%2B+1%29+cross%28%28x+-+2%29%29%29%2F%28x%2Across%28%28x-2%29%29%28x%2B2%29%29

++%28x+%2B+1%29+%2F%28x%28x%2B2%29%29

4: final answer

++%28x+%2B+1%29+%2F%28x%28x%2B2%29%29


Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


?????!!!

You are supposed to TELL us what the problem is -- not ASK us!

And, by the way, the intended function is unclear without the proper use of parentheses....

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

-2/x^2-4 + x-1/x^2-2x
1: What is the problem? What do you need to find or do? What will your final answer look like?
2: What have they told you? What does it mean? What more do you know or can you figure out? What connections can you make?
3: Solve by showing steps towards completing the problem, including writing/using equations.
4: final answer
3. There's NOTHING to SOLVE, since there's NO EQUATION.

   Don't you think you need to answer these questions and then ask someone for help in determining if you answered them correctly?

   How will dumping your work help you to understand the material?

   The EXPRESSION needs PARENTHESES!