1397 x 1397 = ?
Choose the correct choice from the following answers:  A) 1951609  B) 1981709  C) 18362619  D) 2031719  E) None of these
Explanation:   1397 x 1397	= (1397)2   = (1400 - 3)2   = (1400)2 + (3)2 - (2 x 1400 x 3)   = 1960000 + 9 - 8400   = 1960009 - 8400= 
<gadget id="calculator">1960009 - 8400</gadget>
<output>1_951_609</output>
1951609.   1951609NSWER IS 1951609
<result>A</result>
1397 x 1397 = ?