Question

Выполните умножение:1)(a-2)(a-5)=2)(m+6)(m-3)=3)(b+2)(c-7)=4)(x-y)(x-1)=5)(-c+4)(d-2)=

Answer 1

1)а²-5а-2а+10
2)m²-3m+6m-18
3)bc-7b+2c-14
4)x²-x-yx+y
5)-cd+2c+4d+2c

Answer 2

1) (a-2)(a-5) = a^2 - 5a - 2a + 10 = a^2 - 7a + 10 2) (m+6)(m-3) = m^2 - 3m + 6m - 18 = m^2 + 3m - 18 3) (b+2)(c-7) = bc - 7b + 2c - 14 4) (x-y)(x-1) = x^2 - x - xy + y 5) (-c+4)(d-2) = -cd + 2c + 4d - 8