2. Polynomials
medium

निम्नलिखित के गुणनखंड कीजिए

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

Option A
Option B
Option C
Option D

Solution

We have,

$9 x^{2}-12 x+4=(3 x)^{2}-2(3 x)(2)+(2)^{2}$

$=(3 x-2)^{2}\left[\because a^{2}-2 a b+b^{2}=(a-b)^{2}\right]$

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

Standard 9
Mathematics

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