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Mathematics 14 Online
OpenStudy (emilyjones284):

Determine whether x^2-81 is a difference of two squares. If so, factor it.

OpenStudy (anonymous):

Hint: 81 = 9^2 So, you get x^2 - 9^2 now

OpenStudy (emilyjones284):

I dont get what it means by "a difference of two squares"

OpenStudy (mathlegend):

I believe it is just asking are those just two squared numbers.

hero (hero):

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