If n is a positive integer and X2N = 7, then the value of (3x3n) 2-4 (x2) 2n is () A. 833B. 1225C. 2891D. 3283

If n is a positive integer and X2N = 7, then the value of (3x3n) 2-4 (x2) 2n is () A. 833B. 1225C. 2891D. 3283

(3x3n) 2-4 (x2) 2n = 9 (X2N) 3-4 (X2N) 2 = 9 × 73-4 × 72 = 2891