6.23. Сократите дробь: ax + ay - bx - by
1)
;
ay - 6x + by
3)
ab + ac + b2 + bc
;
ax + ay + bx + by
ac
2)
be + ad - bd
ac + bc + ad + bd
4)
(a + b)2 – c?
a + b + c​

nastyalomeyko    3   22.04.2021 19:09    2