(A21-2 Rational Exponents and Properties of Ex Exponents Write the radical using rational exponents sqrt [4](x^-2) sqrt [4](x^-3)=square (Use integers or fractions for any numbers in the expression.)

## Step 1The problem asks us to convert the given radical expressions into expressions with rational exponents. The general rule for converting a radical expression to an expression with a rational exponent is:### where is the root of the radical and is the exponent of the radicand.## Step 2For the first expression, , we apply the rule. Here, (the fourth root) and (the exponent of the radicand). So, we get:### ## Step 3For the second expression, , we again apply the rule. Here, (the fourth root) and (the exponent of the radicand). So, we get:###