Question 258534: explain whether the square of any nonzero number is sometimes, always, or never a positive number. Answer by drk(1908) (Show Source):
You can put this solution on YOUR website! We have two options:
(1) the square of a positive
(2) the square of a negative.
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(1) the square of a positive. a positive x a positive is a positive.
(2) the square of a negative. A negative x a negative is a positive.
Since both options yield a positive, we have
"always" positive.