1.

Factorise\[{{a}^{2x}}-{{b}^{2x}}\].

A. \[({{a}^{x}}+{{b}^{x}})({{a}^{x}}-{{b}^{x}})\]
B.        \[{{({{a}^{x}}-{{b}^{x}})}^{2}}\]  
C. \[({{a}^{x}}+{{b}^{x}})({{a}^{2}}-{{b}^{2}})\]
D.        \[({{a}^{x}}-{{b}^{x}})({{a}^{2}}+{{b}^{2}})\]
Answer» B.        \[{{({{a}^{x}}-{{b}^{x}})}^{2}}\]  


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