3(x²-y²)-(x-y)= 3(x-y)(x+y)-(x-y)= (x-y)(3x+3y-1)
3x² - 3y² - x + y = (3x² - 3y²) - (x - y) = 3(x² - y²) - (x - y) = 3(x - y)(x + y) - (x - y) =
= (x - y)[3(x + y) - 1] = (x - y)(3x + 3y - 1)
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Verified answer
3(x²-y²)-(x-y)= 3(x-y)(x+y)-(x-y)= (x-y)(3x+3y-1)
Verified answer
3x² - 3y² - x + y = (3x² - 3y²) - (x - y) = 3(x² - y²) - (x - y) = 3(x - y)(x + y) - (x - y) =
= (x - y)[3(x + y) - 1] = (x - y)(3x + 3y - 1)