if x * y = xy – 2 ( x + y ) for all integers x and y , then 2 * ( – 3 ) =
"the quickest ( rather only ) way is to apply the given formula : 2 * ( - 3 ) = 2 * ( - 3 ) - 2 ( 2 + ( - 3 ) ) = - 6 + 2 = - 4 option ( c )"
add(negate(multiply(add(negate(3), 2), 2)), multiply(negate(3), 2))