Question

Запишите в виде многочленов произведения
(t+s) (b+r)
(a+2)(b-3)
(d-4)(t+5)
(a+z)(n-m)
(c-d)(x-y)
(4-b)(5+c)
(r-6)(7-d)

Answer 1

tb+tr+sb+sr
2b+ab-3a-6
dt+5d-4t-20
an+zn-am-zm
cx-dx+dy-cy
20-5b-bc+4c
7r-42-dr+6d