Respuesta :

gilsanmarquez54

[tex]SOLUTION:[/tex]

x²+y²+2xy-100

= (x+y)²-100

[tex]( perfect square formula (a+b)² = a²+b²+2ab square variance formula a²-b² = (a+b)(a-b) )[/tex]

= (x+y)²-10²

So the answer Is

[tex]=(x+y+10)(x+y-10)[/tex]

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