(a+b) ×(c-d)

To multiply the expression (a + b) × (c - d), we can use the distributive property of multiplication over addition.

First, distribute a to both terms in the second parentheses: (a + b) × c - (a + b) × d

Next, distribute b to both terms in the second parentheses: ac + bc - ad - bd

Therefore, the product of (a + b) × (c - d) is ac + bc - ad - bd.