Factorise : x-1-(x-1)2+4-4x
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Answer:
(x-1) - (x-1)² + 4 - 4x
= (x-1) - ( x-1)² +4 ( 1 - x )
= (x - 1) - ( x - 1)² - 4(x - 1)
= (x - 1) [1 -(x-1) - 4]
= (x - 1) ( 1 - x + 1 - 4 )
= (x -1)( -x - 2)
= -(x-1)(x+2)
Therefore.,
Factors of x-1 -(x-1)²+4–4x
= -(x-1)(x+2)
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