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
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Factorize of : x² - 4x + 3
= x² - ( 3 + 1 )x + 3 [ • 3 + 1 = 4 ]
[ • Using middle term method ]
= x² - 3x - x + 3
= x ( x - 3 ) - 1 ( x - 3 )
= ( x - 3 ) ( x - 1 ) [ ★ Required answer ]
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