Answer:
(–∞, -4)
Step-by-step explanation:
This equation is not true.
Answer:
We call the denominator rational.
Step-by-step explanation:
For example:

It's clear that the denominator is now a rational number, not an irrational one anymore.
Answer:
Your answer is: No solution
Step-by-step explanation:
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Answer:
a
Step-by-step explanation:
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