To determine which expressions are equivalent using the Associative Property, let's analyze each expression step by step. The Associative Property of multiplication states that the grouping of factors does not change the product. Therefore, we can regroup the factors as needed.
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Expression 1: \[ -3 \cdot (4x \cdot -2) \cdot -6y = (-3 \cdot 4x) \cdot (-2 \cdot -6y) \]
This expression is equivalent. We can regroup the terms correctly, and since multiplication is associative, this holds true.
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Expression 2: \[ -3 \cdot (4x \cdot -2) \cdot -6y = (-3 \cdot 4x) \cdot -2 - 6y \]
This is not equivalent since it's incorrectly combining multiplication and subtraction, which doesn't relate to associative grouping.
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Expression 3: \[ -3 \cdot (4x \cdot -2) \cdot -6y = 18 - 8x \]
This expression is also not equivalent because it's not following the associative property and also includes an incorrect operation of subtraction.
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Expression 4: \[ -3 \cdot (4x \cdot -2) \cdot -6y = -7xy \]
Again, this expression is not equivalent as it states a relationship that cannot be established through associativity.
In conclusion, Expression 1 is equivalent, while the other expressions are not equivalent.