Compound-square grouping

Compound-square grouping

Secondary 2
TGM Original Questions

Factorise each of the following expressions completely.

  1. \(x^2+16y^2-8xy-3x+12y\)
  2. \(1-a^2c^2+c^2-a^2\)

Solution:

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Answer:(a) \((x-4y)(x-4y-3)\); (b) \((1-a)(1+a)(1+c^2)\).

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