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Key Concept
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Distributive property
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For any real number a, b, c, a ( b + c ) = a b+ a c
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Key Concept
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Associative property of multiplication
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For any real number a, b, c, a ( b c ) = ( a b ) c
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$\"\"$

The expression is $\"\"$

$\"\"$ (Apply distributive property: $\"\"$ )

$\"\"$ (Apply associative property of multiplication: $\"\"$ )

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

$\"\"$ (Distributive Property: $\"\"$ )

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

$\"\"$

The simplified expression is $\"\"$ .

\ Key Concept \	\ Distributive property \
\ For any real number a, b, c, a ( b + c ) = a b+ a c \

\ Key Concept \	\ Associative property of multiplication \
\ For any real number a, b, c, a ( b c ) = ( a b ) c \