A-Level Maths: B10-09 Algebraic Fractions: Examples of Repeated Factors in the Denominator

[simbiatodesanya]

Could you use both comparing coefficients and substitution for the same question? e.g. substitution to find A & B but then compare the coefficients to find C?

[alexb]

What do you do when you only have (x+1)^2 on the denominator? The B has nothing to gain so what do you do with it?

[robynclay]

What would you do if there's a follow up question that says 'hence find the first three terms in the expansion of (equation) in ascending powers of x'?

[bluelight]

I was equating for the first question after i found A and B and i got 2= A + B and if A = -2 isnt B=4 ?

[goodhello]

could you explain why you need both A/(x+1) and B/(x+1)^2 please i dont understand