Need some help with some algebra please.
Have the following question from a past exam paper, its a partial fraction question 7, now i have always found partial fractions quite simple however im finding it hard to simplify and reduce the equations down!
i) i have the denominator in the first partial fraction = to (x+5) and the numerator on the final partial fraction= to C
From this i have used the general way to obtain the A B and C
Equating i got the following equations:
2A+C=0 (equating x^3)
9A+2B+10C+D=25 (equating x^2)
-2A-B+10D+25C=71 (equating x)
From here im having trouble not sure because of not having the correct equations or just further working out.
Also having trouble in part B havent got a clue where to start if im honest.
Many thanks in advance.
Might need to attach it (Angry)