Question

(x+4)(y-5)
(x-8)(6-y)
(-10-x)(y+3)
(-2-y)(x-9)
(5+a)(-a-2)
(-a-1)(a-7)
(2x-3y)(x+2y)
(12a+11)(-10-5a)

Answer 1

Ответ:

ху-5х+4у-20

6Х-ХУ- 48+8у

-10у-30-ху-3х

-2х+18-ху+9 у