25 x 20,04 + 4 x 20,04 – 2004 x 20,33 + 2004 x 20,04
= 25 x 20,04 + 4 x 20,04 – 20,04 x 100 x 20,33 + 2004 x 20,04
= 25 x 20,04 + 4 x 20,04 – 20,04 x 2033 + 2004 x 20,04
= 20,04 x ( 25 + 4 - 2033 + 2004)
= 20,04 x 0
=0
25 x 20,04 + 4 x 20,04 - 2004 x 20,33 + 2004 x 20,04
= 25 x 20,04 + 4 x 20,04 - 20,04 x 100 x 20,33 + 2004 x 20,04
= 25 x 20,04 + 4 x 20,04 - 20,04 x 2033 + 2004 x 20,04
= 20,04 x (25 + 4 - 2033 + 2004)
= 20,04 x 0
= 0
Chúc bạn học tót ^_^