Factorise by spiliting the middle term x2-3x+2
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= x² - 3x + 2
= x² -(1+2)x + 2
= x² - 1x - 2x + 2
= x² - x - 2x + 2
= x(x -1) - 2(x - 1)
= (x-1) (x-2)
Hence, the factors of x²-3x+2 are (x-1) and (x-2).
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