Question

(Х+1)•(Х+2)=
(а+b)•(a+b)=
(a-2)•(3-a)=
(a-b)•(a-b)=
(3x+2y)•(3x+2y)=

Answer 1

1) (x+1)•(x+2)=x²+3x+2.

2) (a+b)•(a+b)=(a+b)².

3) (a-2)•(3-a)=-a²+5a-6.

4) (a-b)•(a-b)=(a-b)².

5) (3x+2y)•(3x+2y)=(3x+2y)².