what is the first step to do this??
Hello, daniels!
Don't write the problem in the subject line.
What is the first step to do this??
Doesn't this look silly?
Your problem could be:
. . $\displaystyle \begin{array}{c} \dfrac{15}{x^4} + \dfrac{2}{x^2} + 2x + 2 \\ \\ \dfrac{15}{x^4} + \dfrac{2}{x^2+2x} + 2 \\ \\ \dfrac{15}{x^4} + \dfrac{2}{x^2+2x+2} \\ \\ \dfrac{15}{x^4 + \dfrac{2}{x^2}} + 2x + 2 \\ \\ \dfrac{15}{x^4 + \dfrac{2}{x^2+2x}} + 2 \\ \\ \dfrac{15}{x^4+\dfrac{2}{x^2+2x+2}} \end{array}$
But I bet it is: .$\displaystyle \frac{15}{x^4} + \frac{2}{x^2+2x+2}$
First step: get a common denominator.