Find value of X: (422+404)^2−(4×422×404)=X.	Choose the correct choice from the following answers:
A) 234 B) 267 C) 324 D) 356 E) 577

Rationale: given equation is in the form ( a + b ) 2 − 4 ab where a = 422 and b = 404 hence answer = ( a + b ) 2 − 4 ab = ( a − b ) 2 = ( 422 − 404 ) 2 = 182 = 324 c
Answer: C