Let \( \mathrm{x}, \mathrm{y} \) and \( \mathrm{z} \) be distinct integers, that are odd and pos... VIDEO
Let \( \mathrm{x}, \mathrm{y} \) and \( \mathrm{z} \) be distinct integers, that are odd and positive. Which one of the following statements cannot be true?
a. \( x y z^{2} \) is odd
b. \( (x+y)^{2} z \) is even
c. \( (x+y-z)^{2}(x+y) \) is even
d. \( (x-y)(y+z)(x+y-z) \) is odd
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