2025 IGCSE 0580 October/November P21 Q18

2025 IGCSE 0580 October/November P21 Q18

4 marks

\(\mathrm{f}(x)=2x+5\)

\(\mathrm{f}(x)\,\mathrm{f}(x)-\mathrm{ff}(x)=ax^2+bx+c\)

Find the value of \(a\), the value of \(b\) and the value of \(c\).[4]

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Answer:\(a=4,\ b=16,\ c=10\)

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