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OpenStudy (anonymous):
Add and simplify x+3/x+4 + x+5/x+4
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OpenStudy (anonymous):
denominators are common so you can just add = x+3 + x+5/x+4 = 2x+8/x+4 = 2(x+4)/(x+4) = 2
OpenStudy (anonymous):
2(x+4)^2 -------- x
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