Further Pure Mathematics 4PM1 / Inequalities and Identities / 1.121.12: Factorise and show a cubic factor4PM1/1/June/2019 — Question 1 · 4 marksMark as done · Save for laterf(x)=x3+2x2−5x−6f(x)=x^{3}+2x^{2}-5x-6f(x)=x3+2x2−5x−6(a) Factorise x2−x−2x^{2}-x-2x2−x−2.(1)(b) Hence, or otherwise, show that (x2−x−2)(x^{2}-x-2)(x2−x−2) is a factor of f(x)f(x)f(x).(3)▸ Mark scheme← 1.11: 4PM1/2R/November/2020 — Question 21.12: 4PM1/2/June/2019 — Question 5 →
