ekjchale#1
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Partial fraction q - Can't find my mistake any help appreciated (1 Viewer)
- Thread starter ekjchale#1
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ExtremelyBoredUser
Bored Uni Student
1 - 2x = A(2x+3) - B(x+2)
= x(2A-B) + 3A - 2B
equate:
-2 = 2A - B
1 = 3A - 2B
you should get A = -5, B = -8
your mistake was when you were subbing in A, B values part. You equated incorrectly, 3A - 2B = 1 not -2 .