Substitution and repeated-square factors

Substitution and repeated-square factors

Secondary 2
TGM Original Questions

Factorise each of the following expressions completely.

  1. \(x^2+y^2+2xy-4x-4y-5\)
  2. \(3x^3-6x^2+3x-7(x-1)^2\)

Solution:

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Answer:(a) \((x+y-5)(x+y+1)\); (b) \((x-1)^2(3x-7)\).

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