Question: Can you help me with the question below? After I factor x, I get (A - ?)x, but I don't get why I cannot do

Can you help me with the question below? After I factor x, I get (A - ?)x, but I don't get why I cannot do this

5.1 a) Let A be n x n and r a n x 1 vector Let A be some number Explain why you cannot factor r from Ar - Ar Hint: Just try factoring. What is left over?)

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