When p(x) = x4 - 4x3+mx + nx + 1 is divided by (x-1), the remainder is 7. When it is divided by (x + 1), the remainder is 3. Determine the values of m and n. a) m 3 and n = = 6 b) m = -1 and n = 6 c) m = -1 and n = 3 d) m = 2 and n 3