( 422 + 404 ) 2 − ( 4 × 422 × 404 ) = ?
"explanation : 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 , answer : option c"
divide(add(422, 404), 2)