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Help with partial fractions.

Is this correct?

3x^2 + 6x-2 = d(x^2+4) + ex +f
x = 0
-2 = 4d + f
x = 1
7 = 5d + e + f
x = 2
22 = 8d + 2e + f
x = 3
43 = 13d + 3e + f

then i got d = 3 e = 6 and c = -14
9.docx642.1KB
Original post by Hollymae764
Is this correct?

3x^2 + 6x-2 = d(x^2+4) + ex +f
x = 0
-2 = 4d + f
x = 1
7 = 5d + e + f
x = 2
22 = 8d + 2e + f
x = 3
43 = 13d + 3e + f

then i got d = 3 e = 6 and c = -14

yep, you're correct :smile:
Original post by laurawatt
yep, you're correct :smile:

Great thank you!
Reply 3
Avatar for davros
davros
16
Original post by Hollymae764
Is this correct?

3x^2 + 6x-2 = d(x^2+4) + ex +f
x = 0
-2 = 4d + f
x = 1
7 = 5d + e + f
x = 2
22 = 8d + 2e + f
x = 3
43 = 13d + 3e + f

then i got d = 3 e = 6 and c = -14

I presume this is just a typo and you mean f = -14 :smile:

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