Simplify. Write the answer using positive exponents. -5 A OB. For any numbers a and any integers m and n, an C. For any numbers a and b, and any integer n, =am-n ( an bb b%0. OD. For any numbers a and b, and any integer n, (ab)n = ab". Use X a b y = an b" 4-5 == to start simplifying the expression. X -4-(-5) 4-(-5) Simplify the exponents. x-4-(-5) y4-(-5)