## Algebra: A Combined Approach (4th Edition)

Yes, because in the order of operations, the addition comes after multiplication. Without the parentheses, you will solve 32 $\times$ 5 first, but they want you to solve 12 + 32 first, so they use the parentheses.
Explain why parentheses are necessary in the expression (12 + 32) $\times$ 5.