MEDIUM
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Factorize: a+b+c3-a3-b3-c3

Important Questions on Factorisation and Identities

EASY
Factorise a3-7a2-21a+27 by suitable arrangement.
MEDIUM
Use trial and error method to factorise 5a2+15a+3
MEDIUM
Use trial and error method to factorise x3-7x2+14x-8
MEDIUM
Show that the polynomial 5x3-13x2+17x-9 has exactly one real root.
MEDIUM
Factorise a+b+cbc+ca+ab-abc by suitable arrangement.
HARD
The polynomial x4-48x2-21x-2, is denoted by px. Find the value of constant k for which f(x)=x2+kx+2x2-kx-1. Hence solve f(x)=0. Give your answers in exact form.