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Mathematics 7 Online
OpenStudy (anonymous):

Factor: x^2-y^2

OpenStudy (zepp):

We know that \[a^2 - b^2 = (a-b)(a+b)\]

OpenStudy (zepp):

Then \[x^2 - y^2 = Following~the~same~'sequence':~(x-y)(x+y)\]

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