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Mathematics 20 Online
OpenStudy (anonymous):

(r^2-16)/(r^2-8r+16) simplify by removing factors of 1

OpenStudy (saifoo.khan):

(r-4)(r+4) -------- (r-4)(r-4) r+4 ---- r-4

OpenStudy (anonymous):

parenthesis?

OpenStudy (saifoo.khan):

None.

OpenStudy (anonymous):

k

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