Exemplar Exercise Problems IX — task. Mathematics CBSE, Class 9.

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Factorise the following :

1.

$9x^2 – 12x + 3=$

2.

$9x^2 – 12x + 4=$

Answer variants:

$(2x-3)(2x+3)$

$3(3x-1)(x+1)$

$3(3x+1)(x-1)$

$(3x-2)(3x-2)$

$(3x+2)(3x-2)$

$3(3x-1)(x-1)$

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