Question

expansion formula for (997)²​

Answer 1

994,009

Hope it's helpful to you

Answer 2

ՏͲᎬᏢ ᏴᎽ ՏͲᎬᏢ ᎬХᏢᏞᎪᏆΝᎪͲᏆϴΝ:-

(997)2 = (1000 – 3)²

Here, a = 1000 and b = 3

(1000 – 3)² = (1000)2 – 2 x 1000 x 3 + 3

[(a – b)2 = a2 – 2ab + b2 ]

= 1000000 – 6000 + 9 = 994009

∴ (997)2 = 994009