Step-by-step explanation:

Answer:
Your data is not accurate...
Common factor is 4X
Rewriting the term we get: 
Step-by-step explanation:
We need to find the common factor of the expression: 
A common factor is the term that is common in all the terms of the expression.
In the given expression the common factor is: 4X because it is common in both terms


So, Common factor is 4X
Rewriting the term we get: 
Keywords: Factors
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The answer is, (1, -5)...
That's an awfully broad question. Could you not be more specific?
A basic example: Suppose you are told that sin theta = 1/2. Solving this equation would require finding the measure of the angle theta. In this case the answer would be "30 degrees," or "pi/6 radians."