2025 Presbyterian High School Prelims A Math Paper 1
Write down and simplify the first three terms in the expansion, in descending powers of \(x\), of \(\left(2-\frac{3}{x}\right)^8\).[2]
Given that there is no \(x\) term in the expansion of \(\left(1-2x-kx^2\right)\left(2-\frac{3}{x}\right)^8\), find the constant term in the expansion.[4]
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