Eric Nicholas K's answer to Kathy's Secondary 4 A Maths Singapore question.

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Eric Nicholas K
Eric Nicholas K's answer
5997 answers (Tutor Details)
1st
Here is my working for part (a). I use substitution of several values of x to find the values of A, B and C. There is another way called comparing coefficients, but this is more effective only in certain situations.
Kathy
Kathy
5 years ago
Can you show me the comparing coefficient