Solve: 27 x^2-12 y^2 - Vidyadip

Question

Solve:
$ 27 x^2-12 y^2 $

✓

Answer

$ 27 x^2-12 y^2 $
$ =3\left(9 x^2-4 y^2\right) $
$ =3\left[(3 x)^2-(2 y)^2\right] $
$ =3(3 x-2 y)(3 x+2 y) $

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