Apply the product rule to .

Apply the product rule to .

Rewrite as .

Apply the power rule and multiply exponents, .

Cancel the common factor.

Rewrite the expression.

Evaluate the exponent.

Apply the power rule and multiply exponents, .

Cancel the common factor of .

Factor out of .

Cancel the common factor.

Rewrite the expression.

Apply the power rule and multiply exponents, .

Cancel the common factor of .

Cancel the common factor.

Rewrite the expression.

Simplify.

Simplify (16a^8b^4)^(1/4)