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posted by M on Thursday, September 22, 2011 at 8:14pm.
use the intermediate value theorem to determine whether there is a zero f(x) = -3^3 - 6x^2 + 10x + 9 ; [-1,0]
f(-1) = -4 f(0) = 9 So, the IVT says that f(x) = 0 for x somewhere in [-1,0]
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