Pumpkinpie1
Pumpkinpie1
04-11-2017
Mathematics
contestada
2b-5/b-2 = 3/b+2
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Аноним
Аноним
04-11-2017
Cross multiply:-
3(b - 2) = (2b - 5)(b + 2)
3b - 6 = 2b^2 + 4b - 5b - 10
2b^2 - 4b - 4 = 0
b^2 - 2b - 2 = 0
b = 2.73, -0.73 Answer
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