Algebra-1

To expand the expression (2y - 4)(x + y + 5), we can use the distributive property and multiply each term of the first expression by each term of the second expression:

(2y - 4)(x + y + 5) = 2y * (x + y + 5) + (-4) * (x + y + 5)

Expanding further:

= 2xy + 2y² + 10y - 4x - 4y - 20

Combining like terms:

= 2xy + 2y² + (10y - 4y) - 4x - 20

= 2xy + 2...