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Answer:The principal square root is the positive number square root. Unless otherwise stated, "the square root" of a number refers ONLY to the principal square root. The square root of n2 is the absolute value of n. When solving a simple equation such as x2 = 25, it must be observed that there are two solutions.
determine if the radicand is a perfect nth power of a number. If it is, then the root is rational. Otherwise, it is irrational.
Step-by-step explanation: