Final answer:
To expand y(y + 5), multiply each term inside the parentheses by the term outside the parentheses, resulting in y^2 + 5y.
Step-by-step explanation:
To expand the expression y(y + 5), we use the distributive property. We multiply each term inside the parentheses by the term outside the parentheses:
y(y + 5) = y * y + y * 5
Simplifying the expression gives: y^2 + 5y
Therefore, the expanded form of y(y + 5) is y^2 + 5y.
Learn more about Expanding expressions