Question

1 ) (a+2)*(a+3) 2) (z-1)*(z+4) 3) (m+6)*(n-1) 4) (b+4)*(c+5)1) (c-4)*(d-3) 2) (a-10)*(-a-2)3) (x+y)*(x+1)4) (-p+q)*(-1-q)1) (2x+1)*(x+4)2) (2a+3)*(5a-4)3) (3m-2)*(2m-1)4) (5p-3q)*(4p-q)​

Answer 1

Я сразу буду писать ответы

1) a²+3a+2a+6=a²+5a+6

2) z²+4z-z-4=z²+3z-4

3) mn-m+6n-6

4) bc+5b+4cb+20

1) cd-3c-4d+12

2) -a²-2a+10a+20= -a+8a+20

4) p+pq-q-q²

3)x²+x+xy+y

1)2x²+8x+x+4=2x²+9x+4

2)10a²-8a+15a-12=10a²+7a-12

3)6m²-3m-4m+2=6m²-7m+2

4)20p²-5pq-12pq+3q²=20p²-17pq+3q²

Answer 2

1) (a+2)*(a+3) = a^2 + 5a + 6 2) (z-1)*(z+4) = z^2 + 3z - 4 3) (m+6)*(n-1) = mn - m + 6n - 6 4) (b+4)*(c+5) = bc + 5b + 4c + 20 5) (c-4)*(d-3) = cd - 3c - 4d + 12 6) (a-10)*(-a-2) = -a^2 - 8a + 20 7) (x+y)*(x+1) = x^2 + xy + x + y 8) (-p+q)*(-1-q) = p^2 - pq - p + q 9) (2x+1)*(x+4) = 2x^2 + 9x + 4 10) (2a+3)*(5a-4) = 10a^2 - 8a + 15a - 12 11) (3m-2)*(2m-1) = 6m^2 - 5m - 2 12) (5p-3q)*(4p-q) = 20p^2 - 13pq + 3q^2