Factories (i) 3x2 – x – 4 (ii) 4y2 – 4y + 1
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I) 3x^2 - x - 4
3x^2 - 4x + 3x - 4
x ( 3x - 4 ) + 1 ( 3x - 4 )
therefore 3x -4 and x+1 is the answer
2) 4y ^2 - 4y + 1
4y^2 -2y -2y +1
2y(2y-1) -1 (2y-1)
therefore 2y-1 and 2y-1 are the answers
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