# 7 class. Factorize: 1) 6m (in the second degree) n-3m (in the second degree) +2mn-m 2) 4a (in the fourth degree) - 5a (in thirds of degree) y-8a+10y 3) a (in thirds of degree) b (in the second degree) - a (in the second degree) +a (in the second degree) - b (in the second degree) - a 4) xa-xb (in the second degree) - ya+zb (in the second degree) - za+yb (in the second degree) With an explanation, please

Guriy

68

1) m (3m + 2n - 1) 2) (a³ - 2) (4a - 5y) 3) a³b² - a - b²1. m * (3m+1) * (2n-1) 2. (a (in thirds of degree)-2) * (4a-5y)

322

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andron

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