Apply the product rule to .

Apply the product rule to .

Move .

Multiply by .

Raise to the power of .

Use the power rule to combine exponents.

Add and .

Raise to the power of .

Apply the power rule and multiply exponents, .

Multiply by .

Apply the power rule and multiply exponents, .

Multiply by .

Apply the product rule to .

Apply the product rule to .

Move .

Use the power rule to combine exponents.

Add and .

Raise to the power of .

Apply the power rule and multiply exponents, .

Multiply by .

Move .

Use the power rule to combine exponents.

Add and .

Multiply by .

Simplify -2(-2a^9b^4)^3(3a^9b)^2