Factorising squares and conjugates

Factorising squares and conjugates

Secondary 2
TGM Original Questions

Factorise each of the following expressions completely.

  1. \(36x^2+60x+25\)
  2. \(\frac49a^2+\frac23ab+\frac14b^2\)
  3. \(\frac1{25}p^2-\frac9{16}q^2\)
  4. \(16y^2-9(y+2)^2\)

Solution:

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Answer:(a) \((6x+5)^2\); (b) \((\frac23a+\frac12b)^2\); (c) \((\frac15p-\frac34q)(\frac15p+\frac34q)\); (d) \((y-6)(7y+6)\).

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