A=2002x2002
A=(2000+2)x2002
A=2000x2002+2x2002
B=2000x(2002+2)
B=2000x2002+2x2000
=>A>B
A > B
TK mình nha mình không biết đúng hay sai nữa
A = 2002 x 2002
A = ( 2000 + 2 ) x 2002
A = 2000 x 2002 + 2 x 2002
B = 2000 x ( 2002 + 2 )
B = 2000 x 2002 + 2000 x 2
\(\Rightarrow\)A = B
a = 2002 x 2002
a = ( 2000 + 2 ) x 2002
a= 2000 x 2002 + 2 x 2002
b = 2000 x 2004
b = 2000 x ( 2002 +2 )
b = 200 x 2002 + 2000 + 2
suy ra : A > B
A = 20002 x 2002
A = ( 2000 + 2 ) x 2002
A = 2000 x 2002 + 2 x 2002
B = 2000 x ( 2002 + 2 )
B = 2000 x 20002 + 2 x 2000
=> A > B
A = 2002 x 2002
A = (2000 + 2) x 2002
A = 200 x 2002 + 2 x 2002
B = 2000 x (2002 + 2)
b = 2000 x 2002 + 2 x2000
= > A > B