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DELAPENASHIENA2IN
Answered

factor each of the following difference of two squares.81-x²y²​

Sagot :

Answer:

[tex](9+xy)(9-xy)[/tex]

Step-by-step explanation:

Since both of them are perfect squares, factors using the difference of squares formula, [tex]a^2-b^2=(a+b)(a-b)[/tex] where [tex]a=9[/tex] and [tex]b=xy[/tex].

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