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Mathematics 14 Online
OpenStudy (anonymous):

Simplify (k+5)^2 - (k-5)^2 -(k-5)(k+5)

OpenStudy (anonymous):

k^2+25+10k-(k^2+25-10k)-(k^2-25) 20k-k^2+25

OpenStudy (anonymous):

|dw:1339606095960:dw|

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