Write the expression with positive exponents and simplify as much as possible (For example, 1 1 instead of enter 9 81 Simplify: 3-3 = The expression - 1 (c d6) equals 1 crds r, the exponent of c, is: s, the exponent of d, is: where Write using rational exponents Simplify the expression completely: 1 9y-13 11 Simplify the expression completely: Answer = 12 27 Simplify the following expression completely: (-3x7) Answer: Simplify: 5x5 (32)