A) \[-2{{x}^{2}}\]
B) \[2{{x}^{2}}\]
C) \[{{x}^{4}}\]
D) \[0\]
Correct Answer: D
Solution :
\[{{x}^{2}}-{{x}^{2}}=0\,\,\{-{{(x)}^{2}}={{x}^{2}}\}\]
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