SOLUTION: How do I prove theorem 7.5?

SOLUTION: How do I prove theorem 7.5?

Algebra.Com

Question 438384: How do I prove theorem 7.5?
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
It would help to know what theorem 7.5 actually says, as I don't have your textbook. Even if I did (probably 1/1000 chance) I wouldn't know that it the same book you have.
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