Simplify: 1398 x 1398  Choose the most appropriate option
A) 1954404
B) 1945404
C) 1954044
D) 1954440
E) None of them
= 1398 x 1398 - (1398)^2 = (1400 - 2)^2= (1400)^2 + (2)^2 - 2 x 1400 x 2   =1960000 + 4 - 5600= 
<gadget id="calculator">1960000 + 4 - 5600</gadget>
<output>1_954_404</output>
1954404.   1954404nswer is 1954404.
<result>A</result>
Simplify: 1398 x 1398