Use the Binomial Theorem.

Simplify each term.

Apply the product rule to .

Raise to the power of .

Rewrite using the commutative property of multiplication.

Multiply by .

Apply the product rule to .

Raise to the power of .

Multiply by .

Apply the product rule to .

Raise to the power of .

Multiply by .

Apply the product rule to .

Rewrite using the commutative property of multiplication.

Raise to the power of .

Multiply by .

Multiply by .

Apply the product rule to .

Rewrite using the commutative property of multiplication.

Raise to the power of .

Multiply by .

Apply the product rule to .

Raise to the power of .

A polynomial consists of terms, which are also known as monomials. The leading term in a polynomial is the highest degree term. In this case, the leading term in is the first term, which is .

The leading coefficient in a polynomial is the coefficient of the leading term. In this case, the leading term is and the leading coefficient is .

Find the Leading Coefficient (2x+3y)^4