\"\"\"\"

The expression is \"\".

\"\" (Distributive property: \"\")

\"\"    (Multiply: \"\")

\"\"                   (Multiply: \"\")

\"\"

\"\"              (Commutative property of addition: \"\")

\"\"           (Distributive property: \"\")

\"\"                                   (Add: 10 + 18 = 28 and 36 + 12 = 48)

\"\"

The simplified expression is \"\".