Factorise $4x^{2} - 12x + 9$.

Factorise $4x^{2} - 12x + 9$.
  1. $(2x - 3)^{2}$
  2. $(2x + 3)^{2}$
  3. $(2x-3)(2x+3)$
  4. $(4x-3)(x-3)$

Solution

$(2x)^{2} - 2(2x)(3) + 3^{2} = (2x - 3)^{2}$.

Asked in: MH-SSC-9

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