Final answer:
To remove negative exponents, rewrite the expression as the reciprocal of the base raised to the positive exponent.
Step-by-step explanation:
To remove negative exponents, you can apply the rule that a negative exponent indicates the reciprocal of the base raised to the positive exponent. In this case, the expression 6x2 can be rewritten as 6/x-2. To remove the negative exponent, you can rewrite it as 6/x2.