When simplified and expressed with negative exponents,the expression (x + y)-1 (x-1 + y-1) is equal to:(A ) x-2 + 2x-ly-l + y-2 (B ) x-2 + 2- lx-ly-1 + y-2(C) x-1 y-1 (D ) x-2 + y-2

modassir anwer , 11 Years ago

Grade Upto college level