Rewrite the expression using the negative exponent rule .

Combine and .

Apply the product rule to .

Raise to the power of .

Multiply the exponents in .

Apply the power rule and multiply exponents, .

Multiply by .

Apply the product rule to .

Multiply the exponents in .

Apply the power rule and multiply exponents, .

Multiply by .

Multiply the exponents in .

Apply the power rule and multiply exponents, .

Multiply by .

Factor out of .

Cancel the common factor.

Rewrite the expression.

Simplify (3b^-2)^2(a^2b^4)^3