Пошаговое объяснение:
1.
a) 6(a - 2b + 3)
б) (x - 2)(x + 3)
2.
a) y(x + 3) + z(x + 3) = (y + z)(x + 3)
б) (5a + c)(5a - c)
в) c( + 2bc + ) = c
3.
=
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Пошаговое объяснение:
1.
a) 6(a - 2b + 3)
б) (x - 2)(x + 3)
2.
a) y(x + 3) + z(x + 3) = (y + z)(x + 3)
б) (5a + c)(5a - c)
в) c( + 2bc + ) = c
3.
=