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

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

Solution

$(2x)^{2} + 2(2x)(3y) + (3y)^{2}$.

Asked in: MH-SSC-9

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