(x+y)²=?
(c+d) (c-d)=?
(m+3)²=?
(k-7)²=?
(5+d)³=?
(t+5) (t²-5t+25)=?
(a²+2b) (a²-2b)=?
(4×-5)²=?
(2-s) (4-2s+s²)=?
(a-2b)³=?​