A) \[12{{a}^{2}}{{b}^{2}}\]
B) \[-12{{a}^{2}}{{b}^{2}}\]
C) \[2{{a}^{4}}+2{{b}^{4}}\]
D) \[10{{a}^{2}}{{b}^{2}}\]
Correct Answer: A
Solution :
Required expression \[=({{a}^{4}}+4{{a}^{2}}{{b}^{2}}+{{b}^{4}})-({{a}^{4}}-8{{a}^{2}}{{b}^{2}}+{{b}^{4}})\] \[={{a}^{4}}+4{{a}^{2}}{{b}^{2}}+{{b}^{4}}-{{a}^{4}}+8{{a}^{2}}{{b}^{2}}-{{b}^{4}}=12{{a}^{2}}{{b}^{2}}\]You need to login to perform this action.
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