287 x 287 + 269 x 269 - 2 x 287 x 269 = ?
Choose the most appropriate option
A) 534
B) 446
C) 354
D) 324
E) none of them

Rationale: = a ^ 2 + b ^ 2 - 2 ab where a = 287 and b = 269 = ( a - b ) ^ 2 = ( 287 - 269 ) ^ 2 = ( 18 ) ^ 2 = 324 answer is d
Answer: D