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Mathematics 17 Online
OpenStudy (anonymous):

simplify: x^2-16 over x+4 -4 restriction -4 -4 restriction 4 4 restriction -4 4 restriction 4

OpenStudy (anonymous):

x^2-16 (x)^2 - (4)^2 (x + 4)(x - 4) -------- = ------------ = ------------ = x - 4 x+4 x + 4 x + 4

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