Apply the distributive property.

Multiply.

Multiply by .

Multiply by .

Apply the distributive property.

Apply the distributive property.

Apply the distributive property.

Simplify each term.

Multiply by .

Multiply by .

Multiply by .

Multiply .

Multiply by .

Raise to the power of .

Raise to the power of .

Use the power rule to combine exponents.

Add and .

Rewrite as .

Multiply by .

Subtract from .

Subtract from .

Simplify 6(-7+6i)(-4+2i)