Two solutions in quadratic equations

Reference no: EM13118640

1. When solving a rational equation, why it is ok to remove the denominator by multiplying both sides by the LCD (least common denominator)? Why can you not do the same operation when simplifying a rational expression?

2. Why are there usually two solutions in quadratic equations? Under what situation would one or more solutions of a rational equation be unacceptable?

3. What square root property is essential to solve any radical equation involving radicals?

Reference no: EM13118640

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