Factorise the following using appropriate identity: I) 4x^2 - 12x +9 II) 121 + 22x + -^2 Please do it fast and do write the identity I will mark you as the brainliest. Just do it fast please .
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Step-by-step explanation:first
4x^2-(6+6)x +9
(4x^2-6x)+(-6x+9)
2x(2x-3)+3(2x-3)
(2x-3) (2x+3)
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