Разложите на множители: 1) 2(x - y) - a(x - y) 2) 7(x + y) - a(x + y) 3) 2(a - b) + c(b - a) 4) 2a(b - 3) - 5c(3 - b). Created by mstossel. algebra-ru

1) = (2-a)(x-y)2) = (7-a)(x+y)3) = 2(a-b)-c(a-b)=(2-c)(a-b)4) = 2a(b-3)+5c(b-3)=(2a+5c)(b-3)

Разложите на множители: 1) 2(x - y) - a(x - y) 2) 7(x + y) - a(x + y) 3) 2(a

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Разложите на множители:
1) 2(x - y) - a(x - y)
2) 7(x + y) - a(x + y)
3) 2(a - b) + c(b - a)
4) 2a(b - 3) - 5c(3 - b)

MouseArt 1) 2 * (x - y) - a * (x - y) = (2 - a) * (x - y)
2) 7 * (x + y) - a * (x + y) = (7 - a) * (x + y)
3) 2 * (a - b) + c * (b - a) = 2 * (a - b) - c * (a - b) = (2 - c) * (a - b)
4) 2a * (b - 3) - 5c * (3 - b) = 2a * (b - 3) + 5c * (b - 3) = (2a + 5c) * (b - 3)

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