Distributive Property: Open Middle Theme (V2)

Using digits 0-9 no more than ONE TIME EACH, fill the empty boxes with numbers to create coefficients that make the following statement true.
Create another true statement different from the one you made above.
Create another true statement different from the two you made above.
Create another true statement different from the three you made above.
Use the PEN tool below to check all the boxes where the digits "1" or "0" could NOT GO.
[size=150]Why was it not possible for a "0" or "1" to be placed in the locations you described? Explain fully. [/size]
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Information: Distributive Property: Open Middle Theme (V2)