\"\"\"\"

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The expression is \"\".

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\"\" (Distributive property: a(b + c) = ab + ac)

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\"\"    (Multiply: \"\")

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

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\"\"

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\"\"              (Commutative property of addition: a + b = b + a)

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\"\"           (Distributive property: ab + ac = a(b + c))

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

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\"\"

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The simplified expression is \"\".