Question

1)(c-4) (d-3)
2)(a-10) (-a-2)
3)(x+y) (x+1)
4)(-p+q) (-1-q)

Answer 1

cd-4d-3c+12
-a2-10a-2a+20=-а2-12а+20
x2+xy+x+y=
p-g+pg-g2