16. (x - y)2 + (y - x)2 is equal to
(1) V - x) (1 - y + x)
(3) (x - y)2(1 + y - x)
(2) (x - y)2(1 + y + x)
(4) (y - x)2(1 + y + x)
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Sorry I can't help you because I am in class 6 I am so sorry
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Sorry I can't help you because I am in class 6 I am so sorry
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