PART ONE: Remember whatever you mulitply to the denominators to get CD, multiply it to its numerator as well which will be in letter (ABC). When you set it equal to the original equation, remember to put the value of 0 if there isn't any for that term.
PART TWO: Combine like terms! Set it into a system and cancel out the x's and x^2's. Use elimination to solve for a variable (in this case, eliminate A and C in rows 2-3 to find B. After finding B, plug it into row 1 to find A, and then plug in A & B in row 3 to solve for C. Notice that when we plug in the numbers to the corresponding letters, the second equation was not there because the value of B was 0.
PART THREE: Check your answers! From the resulting equation we found from the previous step, do the same thing and find the CD and remmeber to mulitply whatever you did at the bottom to the numerator as well. Combine like terms and you should end up with the origial equation you had in the very beginning and you're done! :- )
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