Apply the distributive property.

Simplify the expression.

Multiply by .

Rewrite using the commutative property of multiplication.

Simplify each term.

Multiply by .

Multiply by .

Apply the distributive property.

Apply the distributive property.

Apply the distributive property.

Simplify each term.

Rewrite using the commutative property of multiplication.

Multiply by by adding the exponents.

Multiply by .

Raise to the power of .

Use the power rule to combine exponents.

Add and .

Multiply by .

Rewrite using the commutative property of multiplication.

Multiply by .

Multiply by by adding the exponents.

Move .

Multiply by .

Multiply by .

Multiply by by adding the exponents.

Move .

Multiply by .

Multiply by .

Subtract from .

Simplify 7z(5z-y)(5z-y)