Simplify: 1398 x 1398
Choose the correct answer:
A) 1945450
B) 1945440
C) 1954440
D) 1954044
E) 1954404
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.   Answer is 1954404.
<result>E</result>
Simplify: 1398 x 1398