Michael J. answered • 06/14/15

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Mathematical Reasoning and Logic Application

When we have a positive number under the square-root, we can have a positive or negative number. This is because a positive times a positive is positive. Also, a negative times a negative is positive. In addition, when we simplify radicals, we break them down by its factors.

±√(20) =

±√(4)√(5) =

±2√(5) =

±2√(5)

Billy J.

06/14/15