Question

Выполните умножение:

(х+m)*(y+n)

(a-b)*(x+y)

(a-x)*(b-y)

(x+8)*(x+y)

(b-3)*(a-2)

(-a+y)*(-1-y) 

Answer 1

xy+xn+my+mn

ax+ay-bx-by

ab-ay-xb+xy

x2+xy+8x+8y

 ba-2b-3a+6

a+ay-y-y2 

Answer 2

xy+xn+my+mn

ax+ay-bx-dy

ab-ay-xb+xy

 

x^2+xy+8x+8y

ab-2b-3a+6

a+ay-y-y^2