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ANSWER:

( {a }^{2}  -  \:  {b}^{2} ) =   {a}^{2} \:  - 2ab \:  +  {b}^{2}   \\ ( {a}^{2} ) {}^{2}  \:  -  \: 2(a)(b) \:  +  \: ( {b}^{2} ) {}^{2}  \\   {a}^{4}  \:  - 2ab \:  +  {b}^{4}

HOPE IT WORKS

THANKS!!!!!!!



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